AHK Cu Copper Peptide Hair Growth Study (2007) Plain Language Summary Hairgenetix Wholesale AHK CU + GHK CU Hair Serum Pro for your store Faire Did you know your hair responds to peptides on a cellular level? Peptides like GHK Cu and AHK Cu don't just sit on the scalp, they send molecular signals that stimulate hair follicles, increase Copper Peptide Serum 10% GHK CU 5% AHK CU Powerful Hair Growth Treatment Stimulates Follicles Reduces Thinning Thickens Hair Improves Scalp Health for Fuller Stronger Hair Over Time : Amazon.ae: Beauty