GHK Cu is getting a lot of attention right now, and for good reason. This is not just a skin peptide. It's a copper binding tripeptide with documented effects on gene expression, collagen synthesis, Topical GHK Cu: Skin Benefits, Best Forms, and Where to Buy The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline Amazon.com: GHK Cu Copper Peptide Supplement, Anti Aging & Hair Growth Support, Improves Skin Elasticity & Firmness, Thicker, Fuller Hair, Easy Absorption, Precisely Dosed, 90 Vegan Capsules : Health & Household Copper Tripeptide (GHK Cu) for Advanced Skincare & Haircare Formulatio Mitigating GHK Cu Injection Pain: Tips and Tricks Gabriel Alizaidy, MD, MS posted on the topic LinkedIn