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 ★★★★★ 4.0 (114 reviews) Sold : Login>>
GHK-Cu Peptide Skin Cream – Levers.Health US$ 25.06 Min. order: 1 piece ★★★★★ 4.4 (108 reviews) Sold : Login>>
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 Min. order: 1 piece ★★★★★ 5.0 (283 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 ★★★★★ 4.2 (190 reviews) Sold : Login>>
Ghk-Cu Shampoo | Copper Peptide Hair Growth | Best Peptide for Hair Growth US$ 20.65 Min. order: 1 piece ★★★★★ 4.7 (53 reviews) Sold : Login>>