Acetylated Castor Oil Good Texture enhancer Hydration Acetylated Castor Oil at a glance Derived from castor oil An occlusive emollient Prevents water loss Also serves as a thickening agent Acetylated Castor Oil description Acetylated castor oil is described as an occlusive emollient derived from castor oil. As an emollient, this skin care ingredient can delay the evaporation of water from the skin, promoting more hydrated, smooth, soft skin. It may also be used as a thickening agent in cosmetics in order to help improve the consistency of formulas. According to the Personal Care Products Council, this ingredient can be both synthetic or plant derived. Related ingredients: Castor Oil