Peptide Injections: What They Are, What They Promise, and the Big Unknowns GHK Cu Injectable Team Wellcore GHK Cu Copper Peptide Skin Repair, Anti Aging & Healing The NAD Clinic The NAD Clinic Perth Busselton Home Visits GHK Cu Scalp Solution Empower Pharmacy 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: