GHK-Cu — copper tripeptide-1 — is a small peptide bound to copper. Its distinctive blue tint hints at the copper within, and its long research history has made it a favourite of formulators looking for a gentle, dependable active.
What it brings to skin
In skincare, GHK-Cu is valued for helping skin look firmer, smoother and more even. It is comfortable on most skin types and suits both morning and evening routines.
How to pair it
Copper peptides pair beautifully with hyaluronic acid and other peptides. As a rule of thumb, avoid applying them at exactly the same time as strong exfoliating acids or pure vitamin C — alternate them between morning and evening instead.
In our formulas
You will find GHK-Cu in our Snap-8 + GHK-Cu Face Serum and our Firming Cream, where it works alongside Snap-8 and hyaluronic acid for skin that looks firmer and feels deeply hydrated.