What it is
7-Dehydrocholesteryl Palmitate is a sterol-based lipid formed by esterifying 7-dehydrocholesterol with palmitic acid. In cosmetic formulas it acts as an emollient and skin-conditioning agent, helping to soften the skin surface and support the lipid character of the formula. It is used in leave-on products such as sun creams as a minor conditioning ingredient.
Safety & warnings
As a sterol-based emollient lipid it is generally well tolerated in leave-on products. Heavy occlusive lipids can feel rich on very oily or acne-prone skin, so those users may prefer lighter formulas.
Origin & sourcing
It is a sterol ester; 7-dehydrocholesterol is a naturally occurring sterol, and the palmitate ester is prepared by esterification with palmitic acid.
Questions everyone asks
What does this ingredient do in a sunscreen?
It serves as an emollient and skin-conditioning lipid, helping soften the skin and round out the formula's feel.
Is it the same as vitamin D?
No. It is a sterol ester related to 7-dehydrocholesterol; it is used as a skin-conditioning lipid, not as a vitamin claim.