GHK Cu Copper Peptide Supplement, Promotes Skin Repair, Reduces Wrinkles CTDE PARIVAR How is the GHK CU Peptide Used in Skin Rejuvenation and Anti Aging? Concierge MD LA GHK Cu Dosage And Research Protocol The Peptide Guide Ghk cu is honestly amazing for firmer, tighter, more lifted skin!! As we age, our natural copper peptide levels drop, which slows down collagen + elastin production (aka the proteins that keep your 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: