Our peptide haircare and skincare collection is finally complete! The newest addition, our Dual Copper Peptide Hair Serum with AHK Cu + GHK Cu, is now available for pre order and completes the full R 10% GHK Cu + 5% AHK CuCopper Peptide Hair Density Serum GHK Cu Copper Peptide Serum for Hair Growth Hair Thinning & Loss 2% GHK CU Copper Peptide Serum for Hair Growth and Scalp Care Copper Peptides for Hair Serum GHK Cu for Hair PLU Labs