Ghk Cu Experienxe : r Peptides Neurogan Health, GHK Cu Copper Peptide, Hair & Scalp Serum 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 GHK CU Results for Black and Brown Skin: 3 Month Review Ghk Cu Treatment Before And After Okay but Ive only been using GHK Cu for 2 weeks and Im already noticing my skin looking firmer and my fine lines softening. I wasnt expecting to see results this fast but Im loving the glow. DM