CAS 1199495-15-2 Name Diaminopropionoyl Tripeptide 33 Synonyms PREVENTHELIA MF / Puritas 99% Application Diaminopropionoyl Tripeptide-33 is a Tetrapeptide born from preventive cosmetics that protects skin cells from UVA-induced DNA damages and is able to promote the DNA repair system capacity, providing a complete skin protection of intrinsic and extrinsic aging.