GHK Cu is one of the most talked about peptides in aesthetics right now. But how much of what you have heard about it is actually true? Copper peptide, known as GHK Cu, has Amazon.com: Skin Perfection GHK CU Suero de pptidos de cobre para cara y cabello, pptido de cobre para la piel, el cabello y el cuero cabelludo, lquido azul al 1% para cara, GHK Cu Copper Tripeptide 1 Research Reagent GHK Cu and Methylene Blue infused Organic Vegan Shea Butter Blend AzulBotanicals Advanced GHK CU + AHK CU Peptide Hair Growth Serum 30ml Azur Skin