Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum 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 GHK Cu for hair growth does it actually work?, Short answer: no., GHK Cu can be great for skin , but when it comes to hair growth, the evidence just isnt there., And this isnt just theory., As a GHK Cu (Copper Tripeptide Serum) in Santa Barbara, CA Eternity Health Partners GHK Cu Hair Growth Before and After: What to Expect Amino Innovations Advanced GHK CU + AHK CU Peptide Hair Growth Serum 30ml Azur Skin