Say hello to your skin's new BFF GHK Cu is a powerful peptide that supports collagen production, speeds healing, improves hair growth, and helps fight visible signs of aging. This tiny molecule What Is Peptide Therapy and Is It Safe? 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. Amazon.com: InfiniWell GHK CU Peptide Serum Anti Aging Serum for Face, with Copper Peptide Complex Visibly Smooth Fine Lines & Encourage Healthy Skin Hydration Promote Collagen & Elastin Production (30