GHK cu Shampoo to Use After Hair Transplant STEMBOTANY Customize Logo Luxury GHK CU Copper Peptide Hair Growth Oil GHK Cu peptides are used to potentially promote hair growth, increase hair follicle size, and improve scalp health, often for conditions like androgenetic alopecia. As a regenerative peptide, GHK Cu is believed to Before and after begins with consistency. Our 10% GHK Cu formula is engineered for deep absorption to support scalp health and visible density.