AHK Cu (Copper Tripeptide 3) Ingredient Guide Nubeean Noosa GHK Copper Peptide Concentrate, cumpr ingredient cosmetic Rejuvenation and Youth with GHK Cu Peptide Treatment Dr. Ahmet zyigit If you think GHK Cu is just an expensive skin cream, we need to talk. The truth that 99% of people, and even many doctors, overlook is that this copper peptide is 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