AHK CU 100mg Next Age Peptides Amazon.com: Neurogan GHK Cu + AHK Cu Hair Serum Pro Lightweight Scalp Serum with Dual Copper Peptides Daily Hair & Scalp Use, Cosmetic Product : Beauty & Personal Care Amazon.com : DIY AHK Copper Peptide Solution AHK Cu Scalp Hair : Beauty & Personal Care GHK and AHK copper peptide topical serum tutorial This gives a roughly 3% concentration of both peptides. Great for any hair + skin protocol Comment and let me know if you GHK Cu vs AHK Cu: Which Copper Peptide Is More Effective? Not all hair serums are built the same This one is powered by a dual copper peptide system GHK Cu + AHK Cu Designed to support: stronger feeling hair improved elasticity