In one study, collagen production improved in 70% of participants using GHK- Cu — compared to 50% with vitamin C cream and 40% with retinoic acid, all measured in the same study. GHK-Cu US$ 25.43 Min. order: 1 piece ★★★★★ 4.9 (63 reviews) Sold : Login>>
GHK-CU Before and After Pictures US$ 26.40 Min. order: 1 piece ★★★★★ 4.7 (184 reviews) Sold : Login>>
BIOBERX | LIVING YOUR BEST LIFE – BIOBERX US$ 20.28 Min. order: 1 piece ★★★★★ 4.2 (241 reviews) Sold : Login>>
Vectium Blue Copper Peptide Serum & Hyaluronic Acid & Panthenol US$ 23.72 Min. order: 1 piece ★★★★★ 4.7 (24 reviews) Sold : Login>>