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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 ★★★★★ 4.0 (173 reviews) Sold : Login>>
Buy GHK-Cu Cream | 0.5% Copper Peptide US$ 21.09 Min. order: 1 piece ★★★★★ 4.3 (130 reviews) Sold : Login>>
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Copper Peptide Body Wash | Anti-Aging, Skin Firming & Hydration US$ 24.74 Min. order: 1 piece ★★★★★ 4.7 (54 reviews) Sold : Login>>
GHK-Cu Super Serum w/ SNAP-8 – 30ml US$ 20.64 Min. order: 1 piece ★★★★★ 4.2 (55 reviews) Sold : Login>>