SPF 50
Polyhydroxystearic Acid
POLYHYDROXYSTEARIC ACID
Data confidence:Moderate
Function
Emulsifier, Thickener, Stabilizer, Skin Conditioning Agent
EWG Safety Score
2/10Low concern
About this ingredient
A polymeric fatty acid derivative synthesized from stearic acid with multiple hydroxyl groups along its backbone that functions as an emulsifier, thickener, and stabilizer in cosmetic formulations. It improves texture, suspension of pigments, and water resistance in sunscreens and facial care products while enhancing product stability and sensory feel.
