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.
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.
Hydroxyethylcellulose (HEC) is a thickening and gelling agent derived from cellulose, a natural plant material. In skincare products, it creates a smooth texture, helps bind ingredients together, and improves how products feel and spread on skin.
Benefits
Creates a smooth, even texture in gels and creams
Helps products spread easily without feeling heavy
Non-ionic, meaning it works well with most other skincare ingredients
Biocompatible and generally well-tolerated by skin
Science: HEC is documented as biocompatible, biodegradable, nontoxic, and water-soluble in peer-reviewed literature. It is widely used in cosmetic and pharmaceutical formulations as a gelling and thickening agent with a strong safety profile in topical applications.
Sodium Levulinate is a salt derived from levulinic acid that functions as a skin conditioning agent in cosmetics. It helps improve skin texture and hydration by softening and smoothing the skin's surface.
Benefits
Improves skin hydration and moisture retention
Softens and conditions the skin
Helps enhance overall skin texture
Potential concerns
May cause irritation in sensitive individuals if formulation is not properly balanced
Science: A 2025 safety assessment by the Expert Panel for Cosmetic Ingredient Safety concluded that Sodium Levulinate is safe for use in cosmetics at current concentrations when formulated to be non-irritating. The ingredient has established safety data supporting its use as a skin conditioning agent.
