Injectable Peptides for Anti Aging? A Dermatologist Explains GHK Cu : . Dr. Shintre breaks down what it is and why it works. ? A copper based peptide that naturally occurs in your GHK Cu is more than a skincare trend its a copper peptide involved in repair, regeneration, and cellular signaling., This peptide has been studied for its connection to collagen production, skin Four reasons this serum belongs in your routine. GHK Cu Peptides that firm and support collagen renewal. Barrier support to keep your skin healthy and resilient. No injection. No needles. No clinic visit. Injectable GHK Cu: Beginner's Guide to Copper Peptide