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.
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.
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.
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.
Phospholipids are natural fat-like molecules found in plant oils and cell membranes that help strengthen your skin's protective barrier. They work by binding water to the skin and supporting the structure that keeps moisture locked in.
Benefits
Strengthens skin barrier function
Improves skin hydration and moisture retention
Supports wound healing
Has anti-inflammatory properties
Science: Research shows phospholipids are natural constituents of beneficial plant oils and support healthy skin barrier function with anti-inflammatory effects. They are well-tolerated ingredients commonly derived from natural sources like seeds and plant oils.
Xanthan gum is a natural thickener derived from fermented bacteria that helps give skincare products a smooth, gel-like texture. It stabilizes formulas and prevents ingredients from separating, while also helping products spread evenly on skin.
Benefits
Creates smooth, pleasant texture
Stabilizes emulsions and prevents separation
Improves product spreadability and application
Science: Xanthan gum is an FDA-approved, anionic polysaccharide with a long history of safe use across food, pharmaceutical, and cosmetic industries since 1969. Its performance as a thickener and stabilizer is well-established in scientific literature, with no notable skin irritation concerns reported.
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.
Isododecane is a lightweight, colorless liquid hydrocarbon used as a solvent and carrier in skincare formulations. It helps dissolve and deliver other active ingredients, particularly oil-soluble compounds like UV filters and silicone polymers, while providing a smooth, non-greasy feel on the skin.
Benefits
Serves as an effective solvent for oil-soluble actives and UV absorbers
Enables efficient delivery of ingredients into the skin
Provides a light, non-occlusive texture in formulations
Science: Research demonstrates that isododecane is a suitable solvent for UV-absorbing sunscreen ingredients and supports effective topical delivery of active compounds through the skin. It is commonly used in pharmaceutical and cosmetic formulations without documented safety concerns at typical use levels.
Linoleic acid is an essential fatty acid that helps strengthen your skin's natural barrier and improve moisture retention. It's a key component of your skin's lipid layer, which protects against dryness and irritation.
Benefits
Supports skin barrier function
Helps improve skin hydration
May reduce transepidermal water loss
Science: Linoleic acid is well-established in dermatology for barrier repair and is generally well-tolerated. However, current evidence for its effectiveness in treating specific skin concerns like melasma is limited compared to better-studied alternatives such as niacinamide or azelaic acid.
Glyceryl stearate is a natural emulsifier and thickener derived from vegetable oils and glycerin. It helps bind water and oil together in skincare formulas, creating a smooth texture while providing mild moisturizing properties.
Benefits
Helps create stable, smooth product textures
Mild emollient that softens skin
Derived from natural sources (vegetable-based)
Science: The Cosmetic Ingredient Review Expert Panel confirmed in 2023 that glyceryl stearate and related glyceryl diesters are safe for cosmetic use at standard concentrations. Research indicates the ingredient has a skin-safe pH profile and demonstrates good stability in formulations.
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.
Dimethicone Crosspolymer is a silicone-based ingredient that acts as a thickener and texture modifier in skincare products. It helps create a smooth, lightweight feel and can improve how products spread across the skin without leaving a greasy residue.
Benefits
Creates a smooth, non-greasy texture
Helps products glide evenly on skin
Improves product stability and consistency
Science: Dimethicone crosspolymers are widely used in cosmetics and are generally recognized as safe by regulatory bodies including the CosIng database. Limited peer-reviewed data available specifically for this ingredient, but the safety profile is supported by extensive industry use and regulatory approval.
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.
Bakuchiol is a plant-derived compound extracted from the Psoralea corylifolia plant that works similarly to retinol in reducing signs of aging. It helps improve wrinkles, uneven skin tone, and sun damage without the irritation commonly associated with retinoids.
Benefits
Reduces fine lines and wrinkles
Improves hyperpigmentation and uneven skin tone
Helps address photoaging (sun damage)
Generally well-tolerated with fewer side effects than retinol
May have anti-inflammatory and antibacterial properties
Potential concerns
Limited long-term safety data compared to retinol
May cause mild irritation in sensitive individuals at higher concentrations
Less extensively studied than established retinoids
Science: Clinical studies show bakuchiol performs comparably to retinol for reducing wrinkles and hyperpigmentation, with significantly better tolerability and fewer reports of scaling and stinging. However, the ingredient has substantially fewer peer-reviewed clinical trials than retinol, and long-term safety data remains limited.
