A GHK-CU Blue Copper Peptide Serum Concentrate Ampoule Anti-Wrinkle Firming Moisturizing Elasticity Acne Treatment Skincare| Alibaba.com US$ 29.49 Min. order: 1 piece ★★★★★ 4.6 (75 reviews) Sold : Login>>
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$ 22.54 Min. order: 1 piece ★★★★★ 4.3 (241 reviews) Sold : Login>>
SKINHI™ BLUE01 Copper Peptide GHK-CU 1.4% All Over Body Care Size 50ml US$ 22.66 Min. order: 1 piece ★★★★★ 4.4 (256 reviews) Sold : Login>>
Copper Peptide Body Wash | Anti-Aging, Skin Firming & Hydration US$ 28.06 Min. order: 1 piece ★★★★★ 4.1 (44 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$ 25.88 Min. order: 1 piece ★★★★★ 4.4 (215 reviews) Sold : Login>>
GHK-Cu Copper Peptide – Anti-Aging Skincare Tri-Peptide – Bulk Naturals US$ 27.70 Min. order: 1 piece ★★★★★ 4.5 (168 reviews) Sold : Login>>