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Nordic Renewal Pre + Probiotic Cream
Skyn Iceland
Ingredients
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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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Lactobacillus Ferment Lysate is a fermentation byproduct made by breaking down beneficial bacteria (lactobacillus). It's used in skincare for its potential to support skin's natural microbiome and barrier function, similar to how probiotics work in the gut.
Benefits
- May support skin barrier health
- Potentially calming and soothing to irritated skin
- Could help balance skin microbiome
Science: Limited peer-reviewed data available for this ingredient. Most support comes from in vitro studies and manufacturer research rather than robust clinical trials in humans.
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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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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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Panthenol is a lightweight humectant derived from pantothenic acid (vitamin B5) that draws moisture into the skin and helps maintain hydration. It also supports the skin barrier and can help soothe irritation, making it a popular choice in products designed for sensitive or compromised skin.
Benefits
- Hydrates and moisturizes the skin
- Helps calm and soothe irritated or sensitive skin
- Supports skin barrier function and repair
- Lightweight and non-greasy
Science: Panthenol is one of the few ingredients in sensitive skin formulations with clinical evidence specifically tested on volunteers with sensitive skin. Research confirms it reduces skin inflammation and supports barrier function, though comprehensive clinical studies on this ingredient remain limited compared to some alternatives.
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Tocopherol is a form of vitamin E, a fat-soluble antioxidant that protects skin from damage caused by free radicals and oxidative stress. It helps maintain skin's natural barrier function and is commonly used in skincare products to prevent premature aging and support overall skin health.
Benefits
- Protects skin from free radical damage and oxidative stress
- Supports skin barrier function and moisture retention
- May help reduce signs of aging caused by UV exposure and environmental damage
- Works as a lipid antioxidant to prevent degradation of skin oils
Science: Tocopherol (α-tocopherol) is recognized in peer-reviewed research as a key endogenous defense mechanism against oxidative stress in aging skin, particularly from UV-induced damage. Studies confirm it functions as a lipid-soluble antioxidant capable of preventing lipid peroxidation, with established efficacy in cosmetic and therapeutic applications.
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Ethylhexylglycerin is a preservative and antimicrobial ingredient used to prevent bacterial growth and extend shelf life in skincare products. It's a multifunctional ingredient that helps keep formulations stable and free from contamination.
Benefits
- Prevents bacterial contamination in products
- Helps extend product shelf life
- Works synergistically with other preservatives for enhanced protection
Potential concerns
- May not be effective against all bacterial species (notably some Pseudomonas aeruginosa strains)
- Preservative-related sensitization possible in sensitive individuals, though uncommon
Science: Research shows ethylhexylglycerin has broad antimicrobial activity against many common cosmetic contaminants, though effectiveness varies by bacterial species. Studies demonstrate it can work synergistically with other preservative components to enhance biofilm inhibition.
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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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Methylpropanediol is a lightweight humectant and preservative booster commonly used in skincare formulations. It helps products stay stable while drawing moisture into the skin, making it useful in serums, moisturizers, and other hydrating products.
Benefits
- Humectant that helps skin retain moisture
- Enhances the preservative system in formulations
- Light texture that absorbs easily without greasiness
Science: Research confirms methylpropanediol functions effectively as a polyol solvent in cosmetic formulations and is recognized as a safe alternative preservative booster. The ingredient has been validated in quality control testing of commercial skincare products with good safety margins.
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Betaine is a naturally occurring compound found in plants like sugar beets and rice that helps skin retain moisture. In skincare products, it works as a humectant to draw water into the skin and maintain hydration.
Benefits
- Hydrates and moisturizes skin
- Helps skin retain water
- May have anti-inflammatory properties
- Generally non-irritating and well-tolerated
Science: Research indicates betaine (particularly in combination with polyhexanide) is nontoxic and well-tolerated in topical applications. Studies on rice-derived betaine show it is safe, non-irritating, and hypoallergenic, with potential anti-inflammatory and moisturizing benefits for skin.
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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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Rubus Chamaemorus Seed Oil is an extract from cloudberry seeds, a northern berry plant. It's used in skincare for its antioxidant and moisturizing properties, helping to nourish and protect the skin.
Benefits
- Antioxidant protection from plant compounds
- Moisturizing and skin-conditioning effects
- May help soothe and protect skin barrier
Science: Limited peer-reviewed data available for this ingredient. Cloudberries are known to contain antioxidants like vitamin C and ellagic acid, but specific efficacy data for the seed oil in cosmetic formulations is scarce.
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Cetearyl alcohol is a waxy, fatty alcohol derived from vegetable or petroleum sources that acts as an emulsifier and thickener in skincare products. It helps blend oil and water-based ingredients together and gives creams and lotions their smooth, spreadable texture.
Benefits
- Stabilizes emulsions to prevent separation of oil and water
- Thickens and improves texture of creams and lotions
- Creates a smooth, non-greasy feel on skin
Potential concerns
- Rare allergic contact dermatitis reported in sensitive individuals
- May cause localized irritation or allergic reactions in patch-tested cases
Science: Cetearyl alcohol is widely used as an emulsifier in topical formulations and generally has a good safety profile. However, multiple case reports document allergic contact dermatitis in susceptible individuals, suggesting it can act as a contact allergen in rare cases. It does not significantly penetrate skin and primarily remains in the formulation.
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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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Hydroxyacetophenone is a naturally derived compound with antioxidant and antimicrobial properties. It's used in skincare products to help protect skin from environmental stress and maintain product freshness.
Benefits
- Antioxidant protection against free radicals
- Antimicrobial and antiseptic properties
- May help preserve product stability
Science: Research shows hydroxyacetophenone has demonstrated antioxidant, antibacterial, and antiseptic activities in cosmetic and pharmaceutical applications. However, peer-reviewed data specifically evaluating its safety profile and efficacy in topical skincare products for consumers is limited.
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Polyglyceryl-3 Methylglucose Distearate is a natural-origin emulsifier derived from plant-based ingredients that helps blend water and oil together in creams and lotions. It stabilizes skincare formulas to keep them smooth and consistent while supporting even product application.
Benefits
- Stabilizes creams and emulsions
- Helps products spread evenly on skin
- Natural-origin alternative to synthetic emulsifiers
Science: Research indicates this emulsifier effectively stabilizes oil-in-water cream formulations without negatively affecting drug or active ingredient delivery to the skin, regardless of how the formula is manufactured.
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Dicaprylyl Ether is a lightweight emollient derived from fatty acids that helps soften and smooth the skin. It works by creating a protective layer on the skin's surface, improving texture and moisture retention without leaving a greasy feel.
Benefits
- Softens and conditions skin
- Lightweight, non-greasy texture
- Improves skin smoothness
- Enhances product spreadability
Science: An Expert Panel for Cosmetic Ingredient Safety (Cosmetic Ingredient Review) assessed dicaprylyl ether as part of a group of fatty ethers used in cosmetics and concluded these ingredients are safe for use in cosmetic formulations at typical concentrations.
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Cranberry seed oil is a plant-derived oil extracted from cranberry seeds, rich in antioxidants and essential fatty acids. In skincare, it's used to nourish and protect the skin while helping to maintain a healthy skin barrier.
Benefits
- Antioxidant protection from free radicals
- Moisturizing and emollient properties
- May help soothe and calm irritated skin
Science: Limited peer-reviewed data available for this ingredient. Cranberries are known to contain polyphenols and proanthocyanidins with antioxidant properties, though specific efficacy data for the seed oil in topical skincare is sparse.
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Analysis not yet available for this ingredient.
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Analysis not yet available for this ingredient.
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Analysis not yet available for this ingredient.
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Analysis not yet available for this ingredient.
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Analysis not yet available for this ingredient.
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Analysis not yet available for this ingredient.
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Analysis not yet available for this ingredient.
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