Isoamyl Cocoate

Isoamyl cocoate is a fatty acid ester emollient used as a lightweight skin-feel and slip agent, typically at a few percent up to ~10% in leave-on products. As a non-volatile, non-acidic ester, it is generally well-tolerated with low rates of irritant reactions in patch testing compared with fragrances, solvents, or surfactants. Rare individual intolerance can occur (especially in highly compromised eczema skin), but at typical use levels its intrinsic irritancy is very low, supporting a 'very gentle' score. Safety Notes: Isoamyl cocoate is used at very low levels (~0.1–1%) as an emollient/slip agent or solubilizing co-emollient in lotions, serums, sunscreens, and cleansers where it is one of many oils/esters. Mid-range use (2–20%) is common in leave-on creams, makeup/primer textures, and hair conditioners as a primary sensorial emollient. At the high end, consumer-available anhydrous products (body oils, cleansing oils/balms, and silicone-free facial oils) can use it as a major oil-phase component, with market-observed formulas reaching ~50–70% when it functions as a main carrier ester; it is generally not specifically concentration-limited by major cosmetic regulations and is more constrained by product type, sensory targets, and solubility/stability.

Suitability