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, Organic Copper Peptide GHK Cu Anti Aging Moisturizer Lightweight Hydrating Cream Helloskin GHK Cu 1% Triple Peptide Regenerative Serum GHK Cu Copper Peptide Serum for Face Anti Wrinkle Increase Collagen Anti Aging Peptide Labz day 1 vs. week 1 : GHK CU, Going to be doing weekly updates on my overall skin complexion elasticity. So far Ive been loving the benefits GHK CU has to offer as far as producing major collagen