INCI · colorant · CIR review pending · used in 2 products
Zinc Stearate
Zinc Stearate (CAS 557-05-1) is the zinc salt of stearic acid, chemically known as Zinc Dioctadecanoate. It is most commonly used as a binding agent in powder makeup products such as face powders and eyeshadows. It is typically used at concentrations of 3–10%; exceeding this range can cause lumpiness or greasiness on the skin.
Evidence level
moderateEWG score
—Comedogenic
0/5Category
colorant● Benefits
Zinc Stearate provides excellent adherence qualities, helping powder cosmetics stick together in the pan and adhere to the skin upon application. It also functions as an anticaking and viscosity-controlling agent in formulations.
bindingadhesionviscosity-controllinganti-caking
● Cautions
Cosmetic Restriction IV/150 applies per CosIng regulations. Overuse (above typical 3–10% range) can cause lumpiness or greasiness on the skin.
