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$ 26.58 Min. order: 1 piece ★★★★★ 4.3 (245 reviews) Sold : Login>>
Essential GHK-Cu Serum: What It Is, How It Works, and Why It Matters f – Bacteriostaticwater.com US$ 22.71 Min. order: 1 piece ★★★★★ 4.7 (276 reviews) Sold : Login>>
Copper Peptide Body Wash | Anti-Aging, Skin Firming & Hydration US$ 25.55 Min. order: 1 piece ★★★★★ 4.9 (126 reviews) Sold : Login>>
Injectable Peptides for Anti-Aging? A Dermatologist Explains GHK-Cu US$ 25.88 Min. order: 1 piece ★★★★★ 4.8 (283 reviews) Sold : Login>>