GHK Cu for hair growth does it actually work? Short answer: no. GHK Cu can be great for skin but when it comes to hair growth, the evidence just isn't there. And this Say hello to your skin's new BFF GHK Cu is a powerful peptide that supports collagen production, speeds healing, improves hair growth, and helps fight visible signs of aging. This tiny molecule Pls be warned that I don't use peptides from this seller. I don't think this @amos jamieson anneq can be trusted I only get GHK CU from Body Mechanic Active Therapy GHK CU 50mg Peptide High Purity Research Formula Peptide Therapy for Hair Growth: Does It Really Work? IK Clinics