Absolute GHK cu Stem Cells & Peptide Hair Growth Serum and Shampoo MTS Mall of California 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 GHK CU: Promote Hair Growth & Thicker Follicles Evolve GHK Cu Peptide Benefits for Skin and Hair LIVV Natural