GHK CU Peptide Anti Wrinkle Serum Private Label Options GHK Cu vs NAD+: Which Longevity Peptide Should You Take or Stack? A Dermatologist's Take on the Copper Peptide (GHK Cu) Trend GHK Cu (copper peptide) is a science backed anti aging compound that supports collagen production, skin regeneration, and overall skin health. Used in both topical serums and subcutaneous Injectable Peptides for Anti Aging? A Dermatologist Explains GHK Cu Uses and Benefits #ghk GHK Cu is a naturally occurring peptide in human plasma that declines with age. When used in injections (usually subcutaneous), it can offer various benefits: Skin Rejuvenation and Anti Aging: