Sodium Stearoyl Lactylate (Sodium Stearoyl Lactylate)

Sodium Stearoyl Lactylate is a multifunctional ingredient derived from stearic acid and lactic acid, widely used in cosmetic formulations as an emulsifier, co-emulsifier, and skin-conditioning agent. It helps stabilize oil-in-water systems by improving emulsion structure and viscosity, while also enhancing spreadability and delivering a smoother, more cushioned after-feel. Because of its amphiphilic character, it can support the dispersion of oils and improve compatibility between phases, contributing to more robust, elegant textures across a range of formulas. Sodium Stearoyl Lactylate is also valued for its barrier-friendly positioning, often featured in moisturizers and sensitive-skin concepts where comfort and softness are key. Common applications include facial and body lotions, creams, cleansing emulsions, sunscreens, and some hair and scalp products, with use level optimized alongside the primary emulsifier system, pH strategy, and overall formulation goals for stability and sensory performance.