Palmitoyl Decapeptide-21 ek synthetic signal peptide hai jo anti-aging products mein use hota hai. Yeh skin ke andar extracellular matrix proteins ko support karta hai, jisse skin firm dikhti hai aur texture better lagta hai. Iska palmitoyl group skin mein penetration ko aasaan banata hai, toh yeh ingredients zyada effectively kaam kar paate hain.