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.
Sucrose is a natural sugar derived from sugar cane or sugar beets. In skincare, it's primarily used as a humectant to help the skin retain moisture, and as a texture enhancer in formulations. It can also serve as a gentle exfoliant in some products when used in granulated form.
Benefits
Helps skin retain moisture
Provides humectant properties to improve hydration
Generally well-tolerated by most skin types
Potential concerns
May feed acne-causing bacteria if not properly formulated
Can leave skin sticky if used in high concentrations
Potential for irritation in individuals with sensitive skin if concentration is excessive
Science: Limited peer-reviewed data available specifically evaluating sucrose as a skincare active ingredient. The provided research discusses sucrose only as a laboratory tool for isolating nanoparticles, not for its direct skincare benefits. Sucrose's use in cosmetics is well-established as a safe humectant and preservative agent based on decades of cosmetic industry use.
Sorbitol is a naturally derived humectant (moisture-binding agent) that helps skin retain water and stay hydrated. It's a sugar alcohol commonly used in skincare products to improve texture and maintain moisture levels.
Benefits
Draws moisture into the skin for enhanced hydration
Helps improve skin texture and smoothness
Gentle humectant suitable for most skin types
Science: Limited peer-reviewed data available specifically for sorbitol in topical skincare applications. Research shows sorbitol functions effectively as a humectant and moisture-retaining agent in formulations, with a well-established safety profile in cosmetic use.
Propylene glycol is a lightweight humectant and solvent commonly used in skincare formulations. It helps draw moisture into the skin and improves the texture and spreadability of products.
Benefits
Hydrates skin by attracting and retaining moisture
Enhances product texture and makes formulas easier to apply
Helps active ingredients penetrate the skin more effectively
Improves stability and shelf life of formulations
Potential concerns
May cause contact dermatitis or irritation in sensitive individuals
Can occasionally trigger allergic reactions in susceptible people
High concentrations may feel sticky or heavy on some skin types
Science: Research confirms propylene glycol acts as a penetration enhancer in topical formulations, improving skin uptake of active ingredients. The ingredient is widely studied and considered safe at typical cosmetic concentrations, though individual sensitivity varies.
Coconut oil is a natural fat extracted from coconut fruit, composed primarily of saturated oils. In skincare, it acts as a moisturizer and skin conditioner, helping to soften and hydrate the skin.
Benefits
Moisturizes and conditions the skin
May support skin barrier repair
Possesses antimicrobial and antioxidant properties
Generally accessible and affordable
Potential concerns
High in oleic acid, which may be irritating or potentially disrupt the skin barrier in some individuals
Comedogenic for some people — may clog pores and trigger breakouts
May cause contact dermatitis or allergic reactions in sensitive individuals
Science: Coconut oil is deemed safe as a cosmetic ingredient by the Cosmetic Ingredient Review panel. However, research indicates that oils with higher oleic acid content (like coconut oil) have weaker barrier-repair benefits compared to oils with higher linoleic acid ratios, and may even be detrimental to skin barrier function in some cases.
Sodium Stearate is a salt derived from stearic acid (a natural fatty acid) that works as an emulsifier and thickening agent in skincare products. It helps bind oil and water together and gives formulations a stable, gel-like texture.
Benefits
Creates stable emulsions that keep products from separating
Thickens and improves texture of gels and creams
Helps active ingredients penetrate skin more effectively when used in advanced formulations
Science: Research demonstrates Sodium Stearate is an effective emulsifier and stabilizer in topical delivery systems, with studies showing it safely supports high entrapment efficiency in nanoemulsion and liposome formulations without adverse effects on cell viability at typical use concentrations.
