ghk-cu hair growth study human topical 400 mgVeganNon GMOLab TestedIn House VerifiedEnriched with copper peptides GHK Cu is a copper
Description
NAD+ precursors: a questionable redundancy
Copper itself is an essential cofactor for numerous enzymes involved in collagen synthesis (lysyl oxidase), antioxidant defense (superoxide dismutase) and melanin production (tyrosinase)

Vigorous shaking introduces air bubbles and can damage the peptide through mechanical agitation

Overall, very reliable quality
