Ceramide AP

Ceramide AP, formerly known under the INCI name Ceramide 6 II, is an N-acylated sphingolipid consisting of phytosphingosine having the D-erythro structure linked to an alpha-hydroxy saturated or unsaturated fatty acid (CAS #100403-19-8). It is a type of ceramide that occurs naturally in the upper layer of the skin. Ceramides as a class make up approximately 50% of the lipid matrix between skin cells and play a key role in maintaining the skin barrier and hydration.