C24 (2’(S)-hydroxy) dihydro Ceramide is the (2S) isomer of a 2’-hydroxylated form of C24 dihydro ceramide (Item No. 25602) and the (S) isomer of C24 (2’(R)-hydroxy) dihydro ceramide (Item No. 28935). [Matreya, LLC. Catalog No. 2099]WARNING This product is not for human or veterinary use.