Just started GHK Cu? Here's what to expect This isn't an overnight peptide, it builds Weeks 12: You may start noticing small shiftsskin feels a bit smoother, nails a little stronger Weeks 34: GHK Copper Peptide GHK Cu Tripeptide 1 Amazon.com: Skin Perfection GHK Cu Copper Peptide Powder 99.7% Pure DIY Copper Peptides Serum for Face and Scalp Cosmetic Grade GHK Cu 1 Gram Creates Up to 100ml for Fuller Hair and GHK Cu Revival Clinic Copper Peptide Barrier Cream Yunasence GHK Cu with Ceramides YUNASENCE GHK Cu: The Most Powerful Peptide You're Not Using