Pentaerythrityl Stearate is a generic designation for the partial or full stearate ester of pentaerythritol. Unlike the specific distearate or tetrastearate variants, this INCI name covers a broader range of esterification levels with stearic acid. It functions as an emollient and viscosity builder in creams, lotions, and hair care products. The stearic acid chains provide a waxy, rich feel that contributes to product body and long-lasting skin conditioning.
Key Skin Benefits
+ Emollient — softens and smooths skin surface
+ Viscosity building — contributes creaminess and body
+ Long-lasting feel — stearate chains provide extended emolliency
+ Good stability — saturated fatty acid resists oxidation
Pros
+ Rich, substantive skin feel
+ Good oxidative stability (saturated fatty acid)
+ Works in both leave-on and rinse-off products
+ Compatible with wide range of oil-phase ingredients