Use of palmitoyl pentapeptide 4 Matrixyl, also known as Palmitoyl pentapeptide-4 (palmitoyl pentapeptide-3 before 2006), is a matrikine used in anti-wrinkle cosmetics. It was launched in 2000 as an active ingredient for the personal care industry by French cosmetic active ingredient manufacturer Sederma SAS under the trade name Matrixyl.Email : salesexecutive1@yeah.net whatsapp: +8618931626169 wickr: lilywang