Your copper peptide product should be this exact blue. If it isn't, you already have your answer. GHK-Cu is blue because of coordination chemistry, not dye. The Cu²⁺ ion at the center US$ 29.96 Min. order: 1 piece ★★★★★ 4.5 (97 reviews) Sold : Login>>
GHK-Cu Peptide Skin Cream – Levers.Health US$ 25.06 Min. order: 1 piece ★★★★★ 4.6 (126 reviews) Sold : Login>>
Top 10 Foods High In Glutamine | Food & Drink US$ 24.88 Min. order: 1 piece ★★★★★ 4.0 (122 reviews) Sold : Login>>