One of my favorite peptides is GHK Cu. It has made such a dramatic impact on my skin in just one cycle I've been shocked! It supports collagen, healing, and overall skin Amazon.com: Peptiq GHK Cu Copper Peptide Micro Infusion Serum Kit 1 Month Supply 3 Vial System with Hyaluronic Acid for Glass Skin, Fuller Hair & Anti Aging Includes 0.25mm 24k Gold Cosmetic Facial Stamper : GHK Cu vs NAD+: Which Longevity Peptide Should You Take or Stack? GHK Cu (Copper Peptide) Deep Dive: Mechanisms, Benefits, Risks, Forms, & Dosing