Say hello to stronger, fuller looking hair. , Our advanced Copper Peptide Hair Growth Serum combines 10% GHK Cu + 5% AHK Cu to deeply nourish the scalp and support visible thickness from root to AHK CU + GHK Cu Hair Serum Pro 4800mg Hair Growth Neurogan Medical Weight Loss Lipotropic B12 Shots Indiana Copper Peptide Hair Growth Serum (10% GHK Cu + 5% AHK Cu) 30ml ROBYN'S TACK ROOM Copper peptides are used in advanced formulations to support the scalp environment where hair begins. From GHK Cu to AHK Cu and Pal AHK, each peptide plays a role in maintaining follicle health and supporting