GHK Cu Copper Peptides vs. Other Peptides in Skincare Vitali Skincare Copper peptides and Botox serve very different purposes., Botox works by relaxing muscle movement, while copper peptides support skin repair, collagen production, and long term skin quality at a GHK Cu (Copper Peptide) is one of the most powerful peptides for skin regenerationboosting collagen, elastin, and hyaluronic acid while fighting inflammation. But can it truly replace Botox? Here's the deal: GHK Cu supports Copper Peptides for Skin: A Complete Guide