Best in 7 days A GHK-Cu face serum appears blue because the active ingredient, “GHK-Cu” (copper peptide), is naturally a blue-colored powder, meaning its inherent color transfers to the serum when mixed in; this blue hue US$ 25.44 Sold : Login>>
Intermediate Cu(II)-Thiolate Species in the Reduction of Cu(II)GHK by Glutathione: A Handy Chelate for Biological Cu(II) Reduction US$ 29.37 Min. order: 1 piece ★★★★★ 4.2 (97 reviews) Sold : Login>>
GHK-Cu vs NAD+: Which Longevity Peptide Should You Take or Stack? US$ 26.36 Min. order: 1 piece ★★★★★ 4.0 (47 reviews) Sold : Login>>