Most people hear about GHK CU in beauty circles. Skin. Hair. Collagen., What they do not tell you is that this peptide is one of the most versatile in the space. I use it primarily for recovery and GHK Cu 100 Grey Axis Research GHK Cu is a naturally occurring copper binding peptide that plays a major role in tissue repair and remodeling, with a strong focus in research on skin and hair biology. It works by signaling GHK Cu 50mg Bio x compounds How to Reconstitute GHK Cu Peptide Reconstitution Guide