Stearyl Heptanoate Not rated New ingredients Hydration Stearyl Heptanoate at a glance Ester of stearyl alcohol and heptanoic acid Functions as a humectant and emollient Ruled safe in its current usage Usage percentages range from 0.07%-8% Waxy solid in its raw form Stearyl Heptanoate description Stearyl heptanoate is the ester of stearyl alcohol, a type of fatty alcohol, and heptanoic acid, a fatty acid. In cosmetics, it functions as a humectant and emollient. It is a common ingredient in lipsticks and is included in some eyeliner formulas as well. The independent Cosmetic Ingredient Review has ruled that in its current usage, stearyl heptanoate is safe. The Personal Care Products Council reports that usage of stearyl heptanoate in cosmetics ranges in amounts from 0.07%-8%. In its raw form, stearyl heptanoate is a waxy solid. Related ingredients: Stearyl Alcohol