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Toleriane Rosaliac Anti-Redness Face Moisturizer for Sensitive Skin
La Roche-Posay
$30.99
View Product ↗Ingredients
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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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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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Hydrogenated lecithin is a plant-derived phospholipid that has been chemically stabilized to resist oxidation and spoilage. In skincare products, it functions as an emulsifier (helping mix oil and water), a skin-conditioning agent, and a delivery system for other active ingredients.
Benefits
- Stabilizes emulsions and improves product texture
- Enhances penetration of other skincare actives into the skin
- Biocompatible and derived from natural plant sources
- Helps formulate advanced delivery systems like liposomes and micelles
Science: Recent peer-reviewed research (2025) confirms hydrogenated lecithin is highly stable and soluble in cosmetic formulations, with strong emulsifying properties and ability to improve ingredient absorption through the skin barrier. The hydrogenation process eliminates the oxidation concerns present in unprocessed lecithin, making it a reliable excipient for cosmetic and pharmaceutical applications.
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Citric acid is a naturally occurring organic acid commonly used in skincare products as an exfoliant and pH balancer. It belongs to a group of ingredients called alpha-hydroxy acids (AHAs) that help remove dead skin cells from the surface.
Benefits
- Gentle exfoliation to improve skin texture and appearance
- Helps reduce the appearance of keratosis and acne
- Balances product pH to maintain skin compatibility
Potential concerns
- Can cause irritation, redness, or sensitivity in some users, especially with prolonged or frequent use
- May increase sun sensitivity — sunscreen use is recommended when using AHA products
- Not suitable for very sensitive or compromised skin without caution
Science: Citric acid is an established AHA used in cosmetics for superficial peeling and skin appearance improvement, though research emphasizes that caution should be exercised due to potential adverse reactions. It is widely produced industrially and well-established in skincare formulations.
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Polysorbate 20 is a mild emulsifier and solubilizer commonly used in skincare products to help mix oil and water-based ingredients together and keep them stable. It's also used to help dissolve fragrance and active ingredients evenly throughout a formula.
Benefits
- Helps create stable, smooth textures by blending incompatible ingredients
- Improves product consistency and shelf life
- Allows even distribution of active ingredients and fragrance
Potential concerns
- May cause irritation or allergic reactions in people with sensitive skin
- Can occasionally strip skin's natural oils if used in high concentrations
- Some individuals report sensitivity to polysorbates, though this is relatively uncommon
Science: The provided study examined polysorbate 20 as a formulation component in a clinical cancer treatment (vidutolimod), not as a cosmetic ingredient. Limited peer-reviewed data exists specifically evaluating polysorbate 20 safety in topical skincare; however, it is widely used globally and recognized as safe by major regulatory bodies (FDA, EU) at typical cosmetic concentrations (typically under 5%).
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Trisodium Ethylenediamine Disuccinate is a chelating agent, which means it binds to trace metals in cosmetic formulas to keep products stable and prevent discoloration or degradation. It's used in small amounts primarily to maintain product quality rather than directly benefit your skin.
Benefits
- Extends product shelf life
- Prevents oxidation and discoloration
- Improves formula stability
Science: Limited peer-reviewed data available for this ingredient. It is approved for cosmetic use under EU and US regulations as a chelating agent and is considered safe at the low concentrations used in skincare formulations.
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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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Analysis not yet available for this ingredient.
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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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Aluminum hydroxide is a mineral compound that acts as a buffering agent and pH adjuster in skincare formulations. In cosmetics, it helps stabilize products and maintain their acidity balance rather than providing direct skincare benefits to your skin.
Benefits
- Helps stabilize product pH
- Improves product texture and consistency
- Functions as an absorbent in certain formulations
Science: The Cosmetic Ingredient Review Expert Panel concluded that aluminum hydroxide is safe as used in cosmetics at current concentrations. The FDA has evaluated aluminum hydroxide for safety in both medical devices and over-the-counter medications, with no significant safety concerns identified for topical cosmetic use.
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Analysis not yet available for this ingredient.
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Tin Oxide is a mineral powder used in cosmetics primarily as a colorant and opacifying agent to create a smooth, matte finish in powders and foundations. It's an inert mineral that sits on top of the skin rather than being absorbed.
Benefits
- Provides opacity and coverage in powder formulations
- Creates a matte or satin finish
- Inert and unlikely to cause irritation in topical skincare use
Potential concerns
- Inhalation of powder particles should be avoided; inhaling tin oxide dust in industrial settings has been linked to lung concerns, though cosmetic powder use is a different exposure route
- No significant skin or eye irritation reported in normal cosmetic use
Science: The available research focuses on occupational inhalation hazards in industrial manufacturing rather than cosmetic use on skin. Tin oxide is poorly soluble and remains on the skin surface, making systemic absorption unlikely from topical application. Limited peer-reviewed data specifically addresses safety in finished skincare products.
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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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This is a synthetic polymer used primarily as a thickener and stabilizer in skincare formulations. It helps create a smooth, gel-like texture and keeps product ingredients from separating over time.
Benefits
- Creates smooth, pleasant texture
- Stabilizes product formulation
- Helps products spread evenly on skin
Science: Limited peer-reviewed data available for this ingredient. It is a large polymer molecule not typically absorbed through the skin, making systemic concerns unlikely, though individual sensitivities to synthetic polymers are possible.
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Hydrogenated Coco-Glycerides is an emollient derived from coconut oil that has been chemically treated to make it more stable and solid at room temperature. It helps soften and smooth the skin while improving the texture and feel of skincare formulations.
Benefits
- Skin softening and conditioning
- Helps create a smooth texture in creams and balms
- Adds stability to formulations
Science: Limited peer-reviewed data available for this ingredient. It is a safe, inert cosmetic ingredient widely used in personal care products and approved by major regulatory bodies including the FDA and EU Cosmetics Regulation.
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Polysorbate 80 is an emulsifier that helps mix oil and water-based ingredients together in skincare products. It's a synthetic compound derived from sorbitol (a sugar alcohol) and is widely used in cosmetics, pharmaceuticals, and food products to create stable, smooth textures.
Benefits
- Enables smooth blending of oil and water ingredients
- Improves product texture and spreadability
- Helps stabilize formulations
Potential concerns
- Rare but documented risk of allergic reactions or hypersensitivity in susceptible individuals, particularly those with sensitivities to polyethylene glycol (PEG) compounds
- May cause contact dermatitis or irritation in people with sensitive skin
Science: Research indicates polysorbate 80 can trigger immediate hypersensitivity reactions in some individuals, with cross-reactivity possible with related compounds like polyethylene glycols. However, such reactions are uncommon in topical skincare applications compared to intravenous pharmaceutical use. The ingredient has a long history of safe use in cosmetics when applied to skin at typical concentrations.
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Isohexadecane is a lightweight synthetic oil used in skincare formulations to improve texture, spreadability, and how products feel on skin. It helps emulsions stay stable and gives products a smooth, non-greasy finish.
Benefits
- Creates a smooth, lightweight texture that spreads easily on skin
- Helps skincare products absorb without a heavy or greasy feel
- Improves product stability in emulsions
Science: Research shows isohexadecane is used in oil-in-water emulsions to enhance spreadability and skin feel. Studies confirm it functions effectively as an emollient ingredient, though it has slightly higher instability in nano-emulsion systems compared to linear-chain oils with similar carbon numbers.
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Shea butter is a natural fat extracted from the nuts of the African shea tree. It's a rich, occlusive moisturizer that forms a protective barrier on skin to lock in hydration and soften the skin barrier.
Benefits
- Deep moisturizing and nourishing
- Helps reduce water loss from skin
- May soothe irritated or dry skin
- Rich in fatty acids and vitamins
Potential concerns
- May clog pores in acne-prone individuals
- Can cause allergic reactions in sensitive people
- Comedogenic for some skin types
Science: Shea butter has a well-established history of traditional use and is considered safe for topical application. It contains oleic, stearic, and linoleic acids that support skin barrier function, though individual tolerance varies by skin type.
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Analysis not yet available for this ingredient.
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This is a synthetic polymer (plastic-like molecule) used as a thickener and film-former in skincare products. It absorbs water and creates a smooth, gel-like texture, helping products feel lightweight while providing a subtle tightening sensation on the skin.
Benefits
- Creates smooth, lightweight product texture
- Helps products spread evenly on skin
- Provides subtle skin-tightening effect
Science: Limited peer-reviewed data available for this ingredient. It is approved for use in cosmetics by major regulatory bodies (FDA, EU) and is considered a low-risk ingredient with minimal skin penetration due to its large molecular size.
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Acetyl Dipeptide-1 Cetyl Ester is a peptide-derived ingredient designed specifically to calm and protect sensitive skin. It works by targeting the underlying molecular causes of skin sensitivity, helping to reduce uncomfortable reactions to everyday irritants.
Benefits
- Reduces skin sensitivity and reactive responses
- Strengthens the skin barrier
- Calms inflammation
- Helps minimize discomfort from irritants
Science: Clinical research specifically tested this ingredient on volunteers with sensitive skin, showing targeted action on molecular pathways involved in skin sensitivity. It is among a limited group of ingredients in sensitive skin products with evidence directly supporting use in reactive skin conditions.
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This is a synthetic polymer (plastic-like material) used as a film-former and thickener in skincare products. It helps create a smooth texture, improves product consistency, and can form a light protective layer on the skin's surface.
Benefits
- Creates smooth, even product texture
- Helps products spread easily on skin
- Provides lightweight film-forming properties
Science: Limited peer-reviewed data available for this ingredient. It is a synthetic polymer generally recognized as safe in cosmetic formulations and is not known to be a skin irritant or sensitizer at typical use levels.
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Sorbitan Oleate is an emulsifier derived from sorbitol (a natural sugar alcohol) and oleic acid (a fatty acid). It helps mix oil and water-based ingredients together in skincare formulations, creating a smooth, stable texture.
Benefits
- Stabilizes oil-and-water mixtures in creams and lotions
- Improves product texture and spreadability
- Allows better absorption of other skincare actives
Potential concerns
- Mild skin irritant in some individuals; generally minimal irritation in testing
- Rare allergic contact reactions reported (<1% in sensitive populations)
- May reduce skin's DNA repair capacity when exposed to UV radiation (in lab studies)
Science: The Cosmetic Ingredient Review Expert Panel concluded Sorbitan Oleate is safe for cosmetic use at concentrations typically below 10%. While generally well-tolerated with minimal irritation in clinical tests, one in vitro study noted it may interfere with UV-induced DNA repair in human cells—a concern primarily relevant when combined with sun exposure rather than the ingredient alone.
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Glyceryl Stearate Citrate is an emulsifier derived from natural sources (glycerin and stearic acid with citric acid) that helps bind water and oil together in skincare formulations. It creates a stable, smooth texture in creams and lotions while also providing mild skin conditioning benefits.
Benefits
- Stabilizes emulsions for better product texture and consistency
- Helps skin feel soft and moisturized
- Naturally derived from sustainable sources
Science: The Cosmetic Ingredient Review Expert Panel confirmed in 2023 that glyceryl diesters (including glyceryl stearate citrate) are safe for use in cosmetics at typical concentrations. Recent research also demonstrates its effectiveness as an emulsifier in advanced skincare delivery systems.
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Isostearyl Neopentanoate is a lightweight synthetic oil that acts as an emollient and texture enhancer in skincare products. It helps soften the skin and improves how products glide on and feel, while also helping formulations stay stable and preventing them from becoming greasy.
Benefits
- Lightweight moisturization
- Smooth, non-greasy feel
- Improves product spreadability
- Enhances formula stability
Science: Limited peer-reviewed data available for this ingredient. It is derived from isostearyl alcohol and neopentanoic acid, chemically similar to other ester oils widely used in cosmetics with established safety profiles.
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Analysis not yet available for this ingredient.
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Boron Nitride is a mineral powder that acts as a slip modifier, giving products a smooth, silky feel when applied to skin. It has a crystalline structure similar to talc and is commonly used in powders and eyeshadows to improve texture and blendability.
Benefits
- Improves product spreadability and smooth application
- Enhances the silky, luxurious feel of powders and makeup
- Helps reduce friction and creasing in eyeshadows and face powders
Science: The Cosmetic Ingredient Review Expert Panel concluded boron nitride is safe as used in cosmetics, with the highest reported concentration at 25% in eyeshadows. No safety concerns were identified in available chemistry, animal, or clinical data. Boron nitride used in cosmetics is not in nanoparticle form, avoiding potential nanoparticle-related risks.
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Mannitol is a natural sugar alcohol that acts as a humectant and osmotic agent in skincare products. It helps draw moisture into the skin and can provide a smooth texture to formulations.
Benefits
- Hydration and moisture retention
- Smooth product texture
- Potential skin barrier support
Potential concerns
- May cause irritation in very high concentrations
- Can be hygroscopic and may affect product stability if exposed to humidity
Science: Mannitol is recognized in medical literature as a non-toxic osmotic agent used in various pharmaceutical applications. Limited peer-reviewed data is available specifically for topical skincare efficacy, though it is well-established as a safe ingredient in cosmetic formulations and is used in advanced dermal fillers combined with hyaluronic acid.
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Sphingomonas Ferment Extract is a fermented bacterial ingredient that acts as a skin-conditioning agent and potential immune booster. It's created by fermenting Sphingomonas bacteria and is used in skincare to support the skin barrier and promote a healthy complexion.
Benefits
- May support skin barrier function
- Potential anti-inflammatory properties
- Could help improve skin resilience
Science: Limited peer-reviewed data available for this ingredient. Fermented bacterial extracts are generally recognized as safe in cosmetics, though specific efficacy and mechanism studies for Sphingomonas Ferment Extract are not well-documented in published literature.
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