Ghk cu Copper Peptide Powder Advanced Youthful Skin Serum MAXXING. Coming soon., Every product we make lists the exact percentage of every active ingredient on the label., No proprietary blends. No peptide complexes hiding the dose. No fairy dust., 5% lets talk peptides for a minute ive been seeing @drpeptideofatlanta since november and recently started the klow stack which includes peptides like bpc 157, ghk cu, and kpv to support skin Ghk cu Copper Peptide Powder Advanced Youthful Skin Serum