Ingredients
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Analysis not yet available for this ingredient.
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Dimethicone is a silicone-based ingredient that forms a smooth, protective layer on your skin. It helps lock in moisture, creates a soft feel, and is commonly used in moisturizers and primers to improve product texture and skin hydration.
Benefits
- Improves skin hydration by creating a moisture-barrier layer
- Provides a smooth, silky feel to products and on skin
- Well-tolerated by sensitive and atopic (eczema-prone) skin
- Non-greasy alternative to heavier oils
Science: Clinical studies demonstrate dimethicone is safe and well-tolerated in children with atopic dermatitis from 12 months of age. Research shows moisturizers containing dimethicone effectively improve skin hydration in mild-to-moderate atopic dermatitis patients over 14 days.
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Butylene glycol is a humectant—a type of ingredient that draws water into the skin and helps it stay hydrated. It's a small, lightweight molecule commonly used in moisturizers to improve hydration without leaving a heavy feel on the skin.
Benefits
- Increases skin hydration and moisture retention
- Lightweight and absorbs quickly
- Helps other active ingredients penetrate the skin more effectively
Science: Research demonstrates that butylene glycol, when combined with other humectants (like glycerin and hyaluronic acid) and occlusive ingredients in moisturizers, significantly improves skin hydration in both healthy skin and compromised skin conditions such as atopic dermatitis. It is recognized as a safe, effective humectant in dermatological formulations.
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Glycerin is a naturally derived humectant—a ingredient that draws moisture from the air into your skin. It's one of the most widely used and well-studied moisturizing agents in skincare, helping skin feel softer and more hydrated.
Benefits
- Attracts and retains moisture in the skin
- Improves skin hydration and softness
- Helps strengthen skin barrier function
- Suitable for most skin types, including sensitive skin
Science: The Cosmetic Ingredient Review Expert Panel concluded glycerin is safe as used in cosmetics across all concentrations. Research shows glycerin effectively improves skin hydration and is well-tolerated with minimal irritation risk. It is also referenced in clinical guidelines for managing inflammatory skin conditions and maintaining skin integrity.
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Sodium hyaluronate is the salt form of hyaluronic acid, a naturally occurring substance found in your skin that acts like a moisture magnet. In skincare products, it absorbs water from the environment and binds it to your skin, helping to hydrate and plump the skin's surface.
Benefits
- Delivers intense hydration to the skin
- Helps reduce the appearance of fine lines by improving skin moisture
- Supports skin barrier function
- Suitable for all skin types, including sensitive and oily skin
Potential concerns
- In very dry climates with low humidity, it may draw moisture from deeper skin layers if not sealed with an occlusive product
- Rare allergic reactions are possible but extremely uncommon
Science: While the provided research focuses on intra-articular injections for joint health (showing good safety and efficacy), hyaluronic acid and its salt form are well-established in dermatology for topical hydration. The molecule's safety profile is well-documented across decades of use in medical and cosmetic applications, with severe adverse reactions being extremely rare.
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Caprylyl glycol is a preservative and skin-conditioning ingredient derived from coconut oil. It helps prevent bacterial and mold growth in skincare products while also providing mild hydrating and humectant benefits to the skin.
Benefits
- Helps preserve product freshness and prevent contamination
- Provides gentle humectant properties to help retain skin moisture
- Often used as a gentler alternative to traditional preservatives
Potential concerns
- Rare cases of allergic contact dermatitis have been reported in sensitive individuals
- May cause irritation in those with known sensitivity to glycols
Science: A 200-subject repeat patch test study found no delayed hypersensitivity reactions to caprylyl glycol at typical use concentrations. However, isolated case reports of allergic contact dermatitis exist, suggesting it can act as an allergen in susceptible individuals. It is widely used in infant and sensitive-skin formulations as a preservative alternative.
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This is a thickening and stabilizing agent that helps give skincare products their texture and consistency. It works by absorbing water and forming a gel-like network, making products feel smooth and creamy on the skin without leaving a greasy residue.
Benefits
- Creates smooth, pleasant product texture
- Helps stabilize emulsions and prevent separation
- Allows for lightweight formulations that don't feel heavy
Science: Limited peer-reviewed data available for this ingredient. It is widely used in cosmetics and generally recognized as safe by regulatory bodies including the CosIng database and is approved for use in the EU and US.
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Potassium sorbate is a preservative used in skincare products to prevent the growth of mold, yeast, and some bacteria, helping extend shelf life. It's a salt derived from sorbic acid and is commonly used as a gentler alternative to stronger chemical preservatives.
Benefits
- Prevents microbial contamination and mold growth
- Generally considered milder than some other preservatives like benzalkonium chloride
- Allows products to remain effective longer without refrigeration
Potential concerns
- May cause irritation or allergic contact dermatitis in sensitive individuals
- Not suitable for preservative-free formulations
- Limited effectiveness against some bacteria compared to stronger preservatives
Science: Clinical research suggests potassium sorbate is less damaging to delicate tissues than benzalkonium chloride, making it a preferred alternative preservative in sensitive applications like eye products. However, peer-reviewed safety data specific to topical skincare use in the general population is limited.
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Sodium benzoate is a preservative used in skincare products to prevent bacterial and fungal growth, extending shelf life. It's a salt derived from benzoic acid and is one of the most widely used preservatives in cosmetics, skincare, and food products.
Benefits
- Prevents microbial contamination and extends product shelf life
- Generally effective at low concentrations (0.1-0.5%)
- Approved for cosmetic use by major regulatory bodies
Potential concerns
- Can cause allergic contact dermatitis in sensitive individuals; identified as an allergen in medical hand cleansers
- Recent research suggests long-term oral intake may affect bone health and increase osteoporosis risk, though topical skincare exposure is minimal
Science: Sodium benzoate is well-established as a safe preservative in cosmetics at typical use levels. However, emerging research indicates that chronic systemic intake may interfere with bone metabolism through the FGF2/p38/RUNX2 pathway. For topical skincare use, the exposure and absorption are minimal compared to dietary intake, but individuals with known sensitivities should avoid it.
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Phenoxyethanol is a preservative that prevents bacteria, yeast, and mold from growing in skincare products, helping them stay fresh and safe to use. It has been used safely in cosmetics for decades and is effective at very low concentrations.
Benefits
- Prevents microbial contamination and product spoilage
- Broad-spectrum antimicrobial activity against bacteria and yeast
- Minimal impact on beneficial skin bacteria when used at approved levels
Potential concerns
- Rare allergic contact dermatitis in sensitive individuals
- May cause irritation if used in products at concentrations above 1%
Science: The European Scientific Committee on Consumer Safety considers phenoxyethanol safe for all consumers, including children, at concentrations up to 1%. Adverse effects observed in animal studies required exposure levels approximately 200 times higher than those in cosmetic products, and it is classified as one of the most well-tolerated preservatives in cosmetics.
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Polyvinyl alcohol (PVA) is a synthetic polymer derived from polyvinyl acetate. In skincare, it's primarily used as a film-forming agent that creates a thin, breathable layer on the skin to improve product texture, adhesion, and delivery of active ingredients.
Benefits
- Creates a smooth, non-sticky finish on skin
- Improves product adhesion and wear time
- Supports controlled release of active skincare ingredients
- Biodegradable and generally well-tolerated by skin
Science: Research demonstrates PVA's effectiveness as a biocompatible polymer matrix for transdermal delivery systems and wound care applications. Its ability to dissolve rapidly on skin and form stable films makes it suitable for both therapeutic skincare delivery and cosmetic formulations, with no reported safety concerns in topical use.
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Propanediol is a lightweight humectant—a molecule that draws water into the skin to keep it hydrated. It's also used in cosmetic formulations as a solvent and preservative booster, helping products stay stable and feel smooth on the skin.
Benefits
- Hydrates and moisturizes the skin
- Improves product texture and spreadability
- Helps preserve formulations naturally
Science: Propanediol can be produced through bio-based fermentation (from glycerol using microorganisms), making it an environmentally friendly alternative to traditional chemical synthesis. It is widely recognized as safe in cosmetic and food applications, with established use as both a humectant and preservative enhancer.
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Pentylene glycol is a lightweight humectant—a ingredient that draws water into the skin to improve hydration and texture. It's commonly used in serums, sunscreens, and moisturizers as a preservative booster and skin-conditioning agent.
Benefits
- Improves skin hydration by attracting moisture
- Lightweight feel, absorbs quickly without heaviness
- Helps preserve product stability and extends shelf life
Potential concerns
- Rare contact allergy reported in sensitive individuals
- Emerging evidence suggests it may be an uncommon cosmetic allergen—if you have sensitive or reactive skin, patch test first
Science: Safety studies show a high margin of safety at standard use levels (87–671 in adults), with minimal skin penetration due to the ingredient's volatility. However, recent dermatological reports flag pentylene glycol as an emerging contact allergen in some individuals, warranting attention for those with sensitive skin.
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Lecithin is a naturally derived ingredient that acts as an emulsifier and skin conditioner in skincare products. It helps blend water and oil-based ingredients together and can improve the texture and feel of creams and lotions on your skin.
Benefits
- Helps create smooth, blended formulations
- Conditions and softens skin
- Improves product texture and spreadability
Science: The Cosmetic Ingredient Review Expert Panel concluded that lecithin and related phosphoglycerides are safe for use in cosmetics at concentrations up to 50%, based on comprehensive safety assessment. While lecithin can have physiological effects when ingested, these effects are not reproduced through topical skin application.
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Dipropylene glycol is a lightweight humectant and solvent derived from propylene glycol that helps skincare products absorb into skin while drawing moisture to the surface. It's commonly used in serums, toners, and lightweight moisturizers to improve texture and hydration.
Benefits
- Humectant that draws moisture into the skin
- Lightweight feel that doesn't leave greasy residue
- Enhances absorption of other active ingredients
- Helps preserve product stability
Potential concerns
- Rare potential for allergic contact dermatitis in sensitive individuals (documented in medical device contexts)
- May cause irritation or sensitization in people with compromised skin barriers
- Unlikely concern in typical skincare concentrations, but those with known propylene glycol sensitivity should avoid
Science: Dipropylene glycol diacrylate (a related compound) has been identified as an allergen in medical devices in patch testing studies, though the base dipropylene glycol ingredient itself has limited published dermatology data. Allergic reactions appear rare and primarily documented in specialized medical contexts rather than cosmetic skincare use.
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Silica is a mineral powder derived from silicon dioxide that's commonly used in skincare and makeup products. It works primarily as a texture enhancer and absorbent, helping to mattify skin, improve product feel, and absorb excess oil.
Benefits
- Mattifies skin and reduces shine
- Improves product texture and spreadability
- Absorbs excess sebum and moisture
- Creates a smooth, refined appearance
Potential concerns
- When used as nanoparticles, potential for skin penetration remains under study
- Inhalation of silica powder (primarily occupational concern) has known health risks; topical use in cosmetics is considered lower risk
- Listed among potential carcinogenic substances in cosmetic formulations, though safe use levels and regulatory limits are established in the EU and US
Science: A 2023 review of European facial cosmetics identified silica among potential carcinogenic ingredients present in commercial products, though this reflects presence rather than proven harm at typical use concentrations. Research on silica nanoparticles suggests they are being developed for cosmetic use, but percutaneous penetration and long-term safety data remain limited. Regulatory agencies (EU, FDA) have established safe concentration limits for cosmetic use.
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Squalane is a lightweight, skin-identical oil derived from squalene (a natural component of human sebum). It absorbs easily into the skin to lock in moisture and create a smooth, soft feel without leaving a greasy residue.
Benefits
- Hydrates and moisturizes skin
- Mimics skin's natural oils for better compatibility
- Lightweight emollient that doesn't clog pores
- Antioxidant properties
- Well-tolerated by most skin types
Science: The Cosmetic Ingredient Review Expert Panel confirmed squalane is safe for cosmetic use at typical concentrations (2023). Research demonstrates skin hydrating and emollient activity, and squalane is naturally present in human sebum at ~13%, making it biocompatible with skin.
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Caprylic/Capric Triglyceride is a lightweight oil derived from coconut that acts as an emollient and helps formulations blend smoothly. It softens skin and reduces water loss by creating an occlusive barrier on the skin's surface.
Benefits
- Improves skin hydration and reduces transepidermal water loss (TEWL)
- Lightweight, non-greasy feel compared to heavier oils
- Helps deliver other active ingredients deeper into the skin
- Smooth, silky texture in skincare formulations
Science: Research shows that emulsions containing 15% caprylic/capric triglyceride significantly increase skin hydration and reduce water loss in healthy subjects. The ingredient is also used as an effective carrier oil in nanoemulsions to enhance penetration of active compounds into skin.
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2-Hexanediol is a humectant and preservative booster commonly used in skincare products to help retain moisture and extend shelf life. It works by drawing water into the skin while also enhancing the effectiveness of other preservatives, allowing brands to use lower amounts of traditional preservatives.
Benefits
- Hydrates and moisturizes skin by drawing in water
- Helps preserve products with lower preservative levels
- Works synergistically with other skincare ingredients like niacinamide
Potential concerns
- May cause cell viability concerns at concentrations above 1.0% in laboratory studies
- Limited real-world safety data in humans at typical skincare concentrations (usually 2-5%)
- Potential environmental concern if released into water systems
Science: While 2-hexanediol is widely used as a preservative substitute for parabens, recent cytotoxicity studies raise questions about safety at concentrations commonly found in skincare products (>2%). However, these findings are from laboratory cell studies and may not directly translate to human skin application. Further human safety studies are needed to confirm real-world risk.
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Sodium Hydroxide is a strong alkaline chemical used in skincare products primarily as a pH buffer to neutralize acids and adjust the product's pH to safe levels for skin. It is not an active skincare ingredient and appears only in trace amounts in finished products.
Potential concerns
- In concentrated form, sodium hydroxide is caustic and can cause severe chemical burns; however, in cosmetic products it is diluted and pH-buffered to safe levels
- Undiluted or highly concentrated sodium hydroxide should never contact skin directly
Science: The provided research discusses sodium hydroxide only in a specialized medical context (10% solution for surgical cauterization of ingrown toenails), which is not relevant to cosmetic skincare use. In properly formulated skincare products, sodium hydroxide is used in minimal concentrations solely for pH adjustment and is considered safe by regulatory bodies including the FDA and EU.
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Behenyl alcohol is a waxy, plant-derived fatty alcohol that acts as a thickener and emollient in skincare products. It helps create stable, creamy textures in formulations and can improve the feel and moisturizing properties of creams and lotions.
Benefits
- Thickens and stabilizes product texture
- Provides emollient properties for skin conditioning
- Helps reduce moisture loss from skin
- Creates a smooth, non-greasy feel in formulations
Science: Research from L'Oréal shows behenyl alcohol works effectively as a structure-building agent in oil-based skincare systems, particularly when combined with behenic acid. It forms stable crystalline networks in oils that enhance product stability and texture without irritation concerns.
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Acetyl Hexapeptide-8 (also called Argireline) is a synthetic peptide designed to mimic how your muscles work, with the goal of reducing wrinkles caused by facial expressions. It's often marketed as a topical alternative to Botox, though it works differently and is applied directly to the skin rather than injected.
Benefits
- May help reduce the appearance of wrinkles and fine lines over time
- Can improve skin elasticity and hydration
- Affordable, over-the-counter alternative to injectable treatments
Potential concerns
- Limited ability to penetrate deep enough into skin to reach muscle junctions where it would theoretically work
- Its actual effectiveness at preventing muscle contractions when applied topically remains scientifically uncertain
- May cause mild irritation in sensitive individuals, though serious adverse effects are rare
Science: Recent research confirms acetyl hexapeptide-8 shows promise in reducing wrinkle depth and improving skin hydration in clinical studies, and interest in the ingredient has grown significantly since 2022. However, scientists note that the peptide's large molecular size and water-loving nature make it difficult for it to penetrate the skin barrier effectively, raising questions about whether it can actually reach and affect the neuromuscular junctions where wrinkle-causing muscle contractions occur.
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Sodium phytate is a naturally derived ingredient that acts as a chelating agent, binding to minerals and metals on the skin's surface. In skincare, it's primarily studied for its potential brightening and clarifying properties, though research in this area remains limited.
Benefits
- May help brighten skin appearance
- Potential mild exfoliating or clarifying effect
- Naturally derived ingredient
Potential concerns
- Very limited safety data in skincare applications
- Chelating agents can potentially disrupt skin barrier minerals if used excessively
- Most research focuses on dental use rather than facial skincare
Science: Available research on sodium phytate focuses primarily on dental whitening toothpaste rather than skincare products. One 2025 clinical trial showed modest whitening effects in toothpaste formulations over 3-4 weeks, but efficacy plateaued. Peer-reviewed safety and efficacy data specifically for facial skincare use is limited.
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Maltodextrin is a carbohydrate derived from starches like corn or potato. In skincare, it's used as a filler, thickener, and texture agent — it has no direct active benefit for skin itself.
Science: Maltodextrin is an inert, non-toxic carbohydrate commonly used as a placebo control in clinical nutrition studies, indicating excellent safety and tolerability. No adverse effects on skin health or systemic absorption concerns have been documented.
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Analysis not yet available for this ingredient.
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Jojoba seed oil is a natural oil extracted from jojoba plant seeds that closely mimics the skin's natural sebum. It's commonly used in skincare to moisturize, balance oil production, and improve skin texture without leaving a heavy residue.
Benefits
- Lightweight moisturization
- Helps balance oily and dry skin
- Rich in vitamin E and antioxidants
- Generally non-comedogenic (unlikely to clog pores)
Potential concerns
- Rare allergic reactions in sensitive individuals
- May not be suitable for very acne-prone skin in high concentrations
Science: Jojoba oil has a long history of safe use in cosmetics and is well-tolerated by most skin types. Limited peer-reviewed data available for this specific ingredient, but extensive industry experience and anecdotal evidence support its safety and efficacy as a natural moisturizer.
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Shea butter is a natural fat extracted from the nuts of the African shea tree. In skincare, it works as a rich moisturizer and skin conditioning agent that helps soften and protect the skin barrier.
Benefits
- Deep moisturization and hydration
- Skin conditioning and softening
- May help improve skin texture and elasticity
Potential concerns
- May cause sensitivity or irritation in some individuals; formulations should be tested to ensure non-sensitizing properties
- Quality varies by source—impurities in poorly processed shea butter could potentially cause irritation
Science: A 2024 safety assessment by the Cosmetic Ingredient Review Expert Panel concluded that shea-derived ingredients are safe at current use levels and concentrations when formulated to be non-sensitizing. Formulators should monitor for impurities and be aware of cumulative botanical constituents in multi-ingredient products.
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Glyceryl Behenate is a naturally-derived emollient and emulsifier made from glycerin and behenic acid (a fatty acid). It's used in skincare products to soften the skin, improve texture, and help blend oil and water-based ingredients together.
Benefits
- Softens and conditions skin
- Helps stabilize product texture and consistency
- Mild emulsifying agent that blends ingredients smoothly
Potential concerns
- Undiluted forms may cause minor skin irritation, particularly on damaged skin
- Generally well-tolerated at concentrations used in cosmetics (up to 12%)
Science: Safety assessments show glyceryl monoesters like Glyceryl Behenate have minimal acute or chronic toxicity in animals, are not skin sensitizers at cosmetic-use levels, and are not irritating or sensitizing at typical product concentrations. The ingredient is metabolized naturally in the body to free fatty acids and glycerol.
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Pentaerythrityl Tetraisostearate is a synthetic emollient and texture enhancer derived from pentaerythritol and isostearic acid. It's used in skincare products to soften the skin, improve spreadability, and create a smooth, non-greasy feel.
Benefits
- Softens and conditions the skin
- Improves product texture and spreadability
- Creates a smooth, lightweight finish without heavy greasiness
Science: Limited peer-reviewed data available for this ingredient. It is considered a safe synthetic ester used primarily as an emollient and is approved for cosmetic use in major regulatory regions including the EU and North America.
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Ethylhexyl palmitate is a lightweight oil derived from palmitic acid and alcohol. It works as an emollient, helping to soften and smooth the skin by forming a protective layer that reduces moisture loss.
Benefits
- Smooths and softens skin texture
- Reduces water loss from the skin barrier
- Lightweight feel compared to heavier oils
- Improves product texture and spreadability
Potential concerns
- May cause comedogenicity in acne-prone individuals (typical of occlusive oils)
- Potential for irritation in very sensitive skin, though generally mild
Science: Research shows ethylhexyl palmitate functions as an emollient that helps retain skin hydration by reducing transepidermal water loss. It is chemically stable and well-tolerated, with a safety profile consistent with other ester-based cosmetic oils commonly used in skincare formulations.
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Sodium phosphate is a salt derived from phosphoric acid that acts as a pH buffer and emulsifier in skincare formulations. It helps stabilize products and maintain the right acidity level for skin compatibility.
Benefits
- Helps maintain optimal pH balance in formulations
- Acts as an emulsifier to keep oil and water-based ingredients mixed
- Supports formula stability over time
Science: Limited peer-reviewed data available specifically for sodium phosphate in topical skincare. The ingredient has a long history of safe use in cosmetics and pharmaceutical formulations as a buffer and stabilizer, with regulatory approval from major authorities including the FDA and EU.
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Cetyl alcohol is a fatty alcohol derived from natural sources like palm oil that works as an emollient and thickening agent in skincare products. It helps create a smooth texture, improve product consistency, and soften the skin by forming a light protective layer.
Benefits
- Softens and moisturizes skin
- Improves product texture and spreadability
- Helps stabilize emulsions (creams and lotions)
Potential concerns
- Very rare allergic reactions or contact sensitivity in susceptible individuals
- May cause mild irritation in products with high concentrations
Science: Cetyl alcohol has a long history of safe use in topical cosmetics with established safety data. Research indicates it forms nanostructured systems that interact well with skin and does not cause irritation or cellular toxicity in standard formulations.
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Sodium stearoyl glutamate is a gentle cleanser and skin-conditioning agent derived from amino acids and fatty acids. It helps remove oil and impurities while maintaining skin's natural moisture balance, commonly used in cleansers and makeup removers.
Benefits
- Mild cleansing action
- Skin conditioning
- Helps remove makeup and oil
Potential concerns
- Potential allergen for sensitive individuals
- May cause contact dermatitis in susceptible people
Science: Recent dermatological literature (2022) identifies sodium stearoyl glutamate as a known sensitizer in cosmetics, capable of triggering allergic contact dermatitis in some users. While generally recognized as safe for most people, it has been documented as a cause of contact allergies in clinical cases.
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Methyl Glucose Sesquistearate is an emulsifier and texture-modifier derived from glucose and stearic acid. It helps stabilize skincare formulations by allowing water and oil to blend smoothly, while also improving the thickness and spreadability of creams and sunscreens.
Benefits
- Stabilizes emulsions for a smooth, consistent product texture
- Improves how products spread and feel on skin
- Enhances film-forming properties in sunscreens and protective products
- Creates a thicker, more luxurious texture without greasiness
Science: Research shows this ingredient significantly improves the rheological properties (thickness and flow behavior) of skincare formulations, particularly in sunscreens. It produces a pseudoplastic texture that thins under application for better spreadability, making it a preferred choice in professional cosmetic development.
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Zinc gluconate is a form of zinc, an essential mineral, used in skincare products to support skin health and barrier function. It's a chelated form of zinc that allows for better absorption and is gentler on skin than some other zinc compounds.
Benefits
- Supports skin barrier function and integrity
- May help regulate sebum production in oily or acne-prone skin
- Provides antioxidant and anti-inflammatory properties
- Aids in skin healing and wound repair processes
Potential concerns
- May cause mild irritation or dryness in sensitive individuals at high concentrations
- Excessive zinc intake (from supplements, not topical use) can interfere with copper absorption
- Rare allergic contact dermatitis in sensitized individuals
Science: Zinc gluconate is well-established for its role in skin health and wound healing. A 2025 study in Nature Materials examined zinc gluconate's behavior in oral supplements, demonstrating how it assembles into nanoparticles in the body—this research is primarily relevant to internal supplementation rather than topical skincare applications, but supports zinc's bioavailability and cellular interaction mechanisms.
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Copper gluconate is a copper salt that combines the mineral copper with glucose. In skincare, it's primarily used for its antimicrobial properties to help protect against bacteria and potentially support skin health.
Benefits
- Antimicrobial activity against certain bacteria
- May help reduce microbial biofilm formation
- Potential antiviral properties in oral care applications
Potential concerns
- Copper can cause irritation or sensitization in sensitive skin at high concentrations
- Limited safety data specifically for topical skincare use
- May interact with other active ingredients
Science: Research shows copper gluconate has antimicrobial effects, particularly when combined with other agents like chlorhexidine and xylitol in oral care settings. In vitro studies suggest it may inhibit viral spike protein interactions, though human skincare safety and efficacy data remain limited.
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Ceramide NP is a naturally-derived lipid that mimics ceramides found in healthy skin. It works to repair and strengthen your skin's protective barrier, helping it retain moisture and resist irritation.
Benefits
- Restores skin barrier function and structural integrity
- Reduces trans-epidermal water loss (helps skin stay hydrated)
- Strengthens skin's natural defense against irritants and environmental stressors
Science: Recent research demonstrates that Ceramide NP effectively recovers damaged skin barrier function and can be formulated into advanced delivery systems (like ethosomes) to enhance skin absorption. Studies show it meaningfully lowers water loss while restoring epidermis structure in compromised skin.
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Polyglutamic acid (γ-PGA) is a naturally-derived, water-soluble polymer that acts as a humectant and skin conditioning agent. It helps attract and retain moisture in the skin while supporting the delivery of other active ingredients.
Benefits
- Hydration and moisture retention
- Skin conditioning and smoothness
- Potential antioxidant support when paired with other compounds
- Biocompatible and environmentally friendly
Science: Polyglutamic acid is recognized as a biocompatible, water-soluble polymer with good safety profile across cosmetic, food, and medical applications. Recent research demonstrates its effectiveness as a nanoparticle delivery system for active ingredients, enhancing stability and penetration of skincare actives.
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Benzyl alcohol is a preservative and solvent commonly used in skincare products to prevent bacterial and fungal growth, extending shelf life. It also helps dissolve and mix other ingredients together in formulations.
Benefits
- Preserves product freshness and prevents microbial contamination
- Helps stabilize and blend formula ingredients
- Generally recognized as safe for topical use in cosmetics at approved concentrations
Potential concerns
- Can cause skin irritation or allergic contact dermatitis in sensitive individuals
- May cause stinging or dryness on broken or compromised skin
- High systemic absorption in infants and neonates is a known concern; products containing benzyl alcohol should be kept away from babies and nursing mothers should avoid application to breast tissue
Science: Benzyl alcohol is widely used in pharmaceutical and cosmetic formulations as a preservative. Research indicates it has low systemic absorption through intact adult skin at typical cosmetic concentrations, but neonatal toxicity is a documented concern at high doses, warranting caution in products used near infants or during breastfeeding.
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Tranexamic acid is a synthetic amino acid derivative originally developed to reduce bleeding. In skincare, it works by suppressing melanin production and reducing inflammation, making it particularly useful for treating dark spots, melasma, and post-inflammatory discoloration.
Benefits
- Helps fade melasma and stubborn dark patches
- Reduces post-inflammatory hyperpigmentation (dark marks after acne or injury)
- Anti-inflammatory properties may help with rosacea and sensitive skin
- Works well in combination with other treatments
Potential concerns
- Oral/systemic forms have been associated with side effects; topical use is generally safer
- May take several weeks to show visible results
- Limited long-term safety data for topical use in skincare products
Science: Multiple clinical reviews confirm tranexamic acid's effectiveness in treating melasma and post-inflammatory hyperpigmentation, particularly when combined with other therapies. However, systemic (oral) use carries safety concerns, and most skincare applications remain topical, where safety data is still emerging.
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Nonapeptide-1 is a synthetic peptide (short chain of amino acids) designed to help regulate melanin production and transfer in the skin. It's primarily used in skincare products targeting dark spots, uneven skin tone, and conditions like melasma.
Benefits
- May help reduce the appearance of dark spots and hyperpigmentation
- Interferes with melanin transfer to skin cells, potentially evening out skin tone
- Often combined with other brightening ingredients for enhanced efficacy
- Suitable for use in maintenance treatments after professional melasma therapies
Science: Recent research shows nonapeptide-1 can reduce melanin content and inhibit tyrosinase (an enzyme involved in pigment production). Clinical studies indicate it performs well in combination formulas for melasma maintenance and preventing hyperpigmentation recurrence, with evidence supporting its safety in topical skincare applications.
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Aloe Barbadensis Leaf Juice is the clear gel extracted from the inner part of the aloe vera leaf. In skincare, it functions as a skin-conditioning agent known for its soothing and hydrating properties, and is typically used at low concentrations (usually under 1%).
Benefits
- Soothing and anti-inflammatory properties
- Hydrating and skin-conditioning
- Antimicrobial and wound-healing support
Potential concerns
- Whole leaf aloe (including latex) contains anthraquinones that can cause photosensitivity and irritation; reputable products use only the inner gel
- High oral doses in animal studies showed reproductive toxicity and developmental effects; topical use in cosmetics at low concentrations is considered safe
- Potential for allergic contact dermatitis in sensitive individuals
Science: A 2007 safety review by the Cosmetic Ingredient Review panel concluded aloe-derived ingredients are safe for cosmetic use when the phototoxic anthraquinone content is limited to 50 ppm or lower and concentrations remain at 1% or less. The inner gel (polysaccharides) is well-tolerated topically, though oral studies at high doses showed concerns unrelated to typical skincare application.
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Cetearyl Olivate is a natural emulsifier and skin-conditioning agent derived from olive oil. It helps blend oil and water-based ingredients together in skincare products while leaving skin feeling soft and moisturized.
Benefits
- Helps create smooth, stable product texture
- Provides light moisturizing properties
- Derived from natural olive oil
Science: Limited peer-reviewed data available for this ingredient. Cetearyl Olivate is widely used in cosmetics as a safe, naturally-derived emulsifier with a strong safety history in consumer skincare products.
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Sorbitan Olivate is an emulsifier derived from sorbitol (a natural sugar alcohol) and olive oil fatty acids. It helps mix oil and water-based ingredients together in skincare formulations, creating stable, smooth products.
Benefits
- Stabilizes product texture and prevents separation of oils and water
- Derived from natural olive oil, aligning with plant-based ingredient preferences
- Allows for creation of lighter, more elegant formulations
Potential concerns
- Generally mild skin irritant in some individuals; minimal irritation in most clinical studies
- Rare allergic contact dermatitis reported in fewer than 1% of sensitive individuals
- May cause greater irritation when combined with fragrance components
Science: The Cosmetic Ingredient Review Expert Panel concluded Sorbitan Olivate is safe for cosmetic use at concentrations typically below 10%. Clinical studies show it is generally a minimal to mild skin irritant and nonsensitizing in the general population, though rare allergic reactions have been documented in individuals with contact dermatitis.
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Analysis not yet available for this ingredient.
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Lactic Acid/Glycolic Acid Copolymer (PLGA) is a biodegradable synthetic polymer made from two common chemical building blocks. In skincare, it's primarily used as a delivery system to help active ingredients penetrate the skin more effectively, rather than as an active ingredient itself.
Benefits
- Improves skin penetration of active ingredients
- Biodegradable and breaks down naturally in the body
- Enables more effective delivery of peptides and other actives to skin cells
Potential concerns
- Limited safety data specific to topical skincare use
- May cause irritation in sensitive individuals depending on formulation and concentration
- Research on this ingredient in cosmetics is minimal; most data comes from pharmaceutical and cancer research contexts
Science: Published research on this ingredient focuses on its use as a drug delivery system in cancer therapeutics rather than cosmetic skincare. No peer-reviewed studies specifically evaluate its safety or efficacy in topical skincare products for everyday consumers.
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Dehydroacetic acid is a preservative used in skincare products to prevent bacterial and fungal growth, helping extend shelf life and maintain product safety. It's been used in cosmetics for decades and works by inhibiting microbial activity.
Benefits
- Prevents bacterial and fungal contamination in products
- Extends product shelf life
- Allows products to remain safe and effective over time
Potential concerns
- May cause sensitivity or irritation in individuals with fragrance or preservative sensitivities
- Can interact with other preservatives in formulations, potentially reducing effectiveness
Science: The Cosmetic Ingredient Review Expert Panel has repeatedly affirmed the safety of dehydroacetic acid when used at current concentrations and practices, most recently in 2024 after reviewing updated safety data. The ingredient has been assessed as safe in cosmetics since 1985 with consistent reaffirmation in subsequent reviews.
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Isononyl isononanoate is a lightweight synthetic oil derived from fatty acids, used in skincare products as an emollient to soften and smooth skin. It provides a silky texture without a greasy feel, making it popular in moisturizers, serums, and foundations.
Benefits
- Softens and conditions skin
- Provides lightweight moisture without heaviness
- Improves product texture and spreadability
Science: Research shows isononyl isononanoate has a very clean chemical profile with minimal volatile compounds—mainly just the ester itself and traces of isononyl alcohol from synthesis. It is well-tolerated in cosmetic formulations and considered safe for topical use.
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Ubiquinone, also known as CoQ10, is a naturally occurring compound found in your body's cells that helps produce energy and protect against oxidative damage. In skincare, it's used as an antioxidant to help defend skin from environmental stress and may support skin's natural renewal processes.
Benefits
- Antioxidant protection against free radicals and environmental damage
- May help reduce the appearance of fine lines and support skin firmness
- Supports skin's natural energy production and cellular health
Science: Research shows ubiquinone (in its reduced form, ubiquinol) effectively traps harmful lipid peroxyl radicals that damage cells, suggesting strong protective potential for skin. The compound is naturally present in human cells and is well-tolerated in topical applications, making it a safe ingredient for regular skincare use.
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Arachidyl glucoside is a plant-derived emulsifier and texture enhancer made from arachidic acid (a fatty acid) and glucose. It helps skincare products blend smoothly and improves their feel on the skin.
Benefits
- Improves product texture and spreadability
- Plant-derived emulsifier
- Helps stabilize skincare formulations
Potential concerns
- Known allergen — can cause allergic contact dermatitis in sensitive individuals
- May trigger skin reactions in people with existing sensitivities to arachidyl alcohol or related compounds
Science: Multiple case reports document allergic contact dermatitis caused by arachidyl glucoside in skincare products, identifying it as a cosmetic allergen. While safe for most users, it poses a real risk for individuals with contact sensitivities or arachidyl alcohol allergies.
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Arachidyl alcohol is a fatty alcohol derived from plant oils that acts as an emollient and thickening agent in skincare creams and lotions. It helps create a smooth texture and supports the product's ability to hydrate and soften skin.
Benefits
- Skin softening and smoothing
- Improves product texture and spreadability
- Supports moisture retention
Potential concerns
- Potential for allergic contact dermatitis in sensitive individuals
- May cause skin irritation or allergic reactions in rare cases
Science: A 2026 case report documented allergic contact dermatitis caused by arachidyl alcohol combined with arachidyl glucoside in a commercial day cream, indicating that while generally well-tolerated, this ingredient can trigger allergic reactions in susceptible individuals. Overall safety data in peer-reviewed literature remains limited.
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Phytosterols are plant-derived compounds structurally similar to cholesterol that help strengthen and protect your skin's natural barrier. In skincare products, they work to improve moisture retention and support skin elasticity.
Benefits
- Strengthens skin barrier function
- Improves skin hydration and moisture retention
- Supports skin elasticity and firmness
- Provides antioxidant protection
Science: Phytosterols are naturally occurring compounds found in plants like avocado and lavender, known for their antioxidant and skin-conditioning properties. Research indicates they support cardiovascular and skin health, though peer-reviewed cosmetic efficacy studies specific to topical skincare application are limited.
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Astaxanthin is a natural pigment derived from microalgae that acts as a powerful antioxidant in skincare products. It works by neutralizing free radicals and reducing inflammation, helping to protect skin from environmental damage and signs of aging.
Benefits
- Protects skin from sun damage and photoaging
- Reduces inflammation and redness
- Neutralizes free radicals with exceptionally high antioxidant capacity
- May improve skin firmness and elasticity
- Supports overall skin health and repair
Science: Clinical research demonstrates astaxanthin has the highest oxygen radical absorbance capacity among carotenoids (100-500 times higher than vitamin E) and 10 times greater free radical inhibitory activity than related antioxidants. Human trials support its photoprotective and anti-inflammatory effects on skin, though optimal dosing and formulation methods in topical products require further investigation.
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Polyacrylate Crosspolymer-6 is a synthetic polymer used as a thickener and stabilizer in skincare formulas. It helps create a smooth, gel-like texture and keeps product ingredients evenly distributed without separating.
Benefits
- Creates smooth, spreadable texture
- Stabilizes formulas and prevents separation
- Helps products feel lightweight on skin
Science: Limited peer-reviewed data available for this ingredient. As a synthetic polymer, it is generally recognized as safe for topical use and is not absorbed through the skin due to its large molecular size. It is approved for cosmetic use in major regulatory regions.
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Hydroxypropyl cyclodextrin is a helper ingredient that works like a tiny molecular cage, trapping other active ingredients to make them more stable, easier for skin to absorb, and less irritating. It's commonly used to improve how well beneficial compounds like antioxidants and soothing agents penetrate the skin.
Benefits
- Improves skin absorption of active ingredients
- Increases stability of sensitive or unstable actives
- Reduces potential irritation from encapsulated ingredients
- Enhances effectiveness of antioxidants and anti-inflammatory compounds
Science: Recent research shows hydroxypropyl cyclodextrin can enhance skin penetration of active ingredients by up to 3.5 times while simultaneously reducing irritation and improving stability. It functions as a delivery system that makes other skincare actives work better and gentler on skin.
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Polyglyceryl-4 Caprate is an emulsifier and solubilizer derived from glycerin and coconut oil. It helps blend water and oil-based ingredients together in skincare formulas, and can improve the delivery of active compounds into the skin.
Benefits
- Helps stabilize product texture and consistency
- Improves absorption and skin penetration of other active ingredients
- Allows water-insoluble beneficial compounds to be used in skincare products
Science: Research demonstrates that polyglyceryl-4 caprate can effectively encapsulate and stabilize natural bioactive compounds (such as α-bisabolol) in nanoparticle form, improving their stability in aqueous products and enabling their use in cosmetics. The ingredient itself showed good biocompatibility in laboratory cell studies.
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Sodium carbonate is an alkaline salt commonly used in skincare products as a pH buffer and exfoliating agent. It helps balance acidity in formulations and can gently remove dead skin cells from the surface of the skin.
Benefits
- Gentle chemical exfoliation to remove dead skin cells
- pH balancing in skincare formulations
- May help soften and condition the skin
Potential concerns
- Can cause irritation, dryness, or redness if used at high concentrations or on sensitive skin
- May disrupt the skin's natural pH barrier if overused
- Strong alkalinity could cause burning or stinging sensations
Science: Research shows sodium carbonate effectively degrades pectin structures and alters skin composition in food applications, suggesting similar exfoliating effects on human skin. However, limited peer-reviewed safety data exists specifically for cosmetic use on facial or body skin at typical product concentrations.
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Magnesium Aspartate is a mineral compound that combines magnesium with aspartic acid. In skincare, it is primarily used as a skin-conditioning agent and may support overall skin health, though its topical benefits are modest compared to its documented internal use.
Benefits
- May help maintain skin hydration and barrier function
- Provides magnesium, a mineral involved in skin cell health
- Generally well-tolerated with minimal irritation potential
Science: The available scientific literature focuses on magnesium aspartate's internal use for liver and cholestatic conditions rather than topical skincare applications. No peer-reviewed studies were identified examining this ingredient's direct effects on skin health or cosmetic efficacy when applied topically.
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