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 BPC 157 Precision Performance Physical Therapy Copper Peptide Hair Growth Serum 10% GHK Cu & 5% AHK Cu Hairgenetix BPC 157 Benefits, Dosage & Before After Results Amazon.com: Skin Perfection Copper Peptide Serum GHK CU 1% for Face & Hair Copper Peptides for Skin, Hair, & Scalp 1% Blue Liquid for Face, Neck, Body, Scalp Multi Use Serum Booster with