Ghk cu is honestly amazing for firmer, tighter, more lifted skin!! As we age, our natural copper peptide levels drop, which slows down collagen + elastin production (aka the proteins that keep your Before vs. after 3 months of GHK Cu peptide therapy smoother texture, more even tone, and skin that looks healthier overall. Small peptide, big difference Skin Perfection GHK Cu Copper Peptide Serum Booster, 1 Percent Blue Liquid For Face, Neck, Body, Hair, And Scalp, 0.5 oz Walmart.com Turn Back Time with GHK CU Peptides Meet one of the most powerful anti aging peptides in skincare GHK CU. This advanced peptide helps to: Tighten and firm loose skin TIGHTENING CREAM, GHK, COOPER,