Copper peptides (GHK-Cu): what they do for skin texture
Copper peptides — especially GHK-Cu — are among the most searched cosmetic peptides for texture and firmness appearance. This guide sticks to cosmetic reality: what they are, how to use a serum, and how long to wait before judging photos.
What copper peptides are
GHK-Cu (copper tripeptide-1) is a small peptide that can bind copper. In skincare, it’s used in serums and creams positioned for repair-looking texture — not as a medicine.
Benefits people track
- Smoother-looking texture over weeks
- Firmer “bounce” feel when paired with a moisturizer
- A clear PM ritual (many prefer evening use)
How to use a GHK-Cu serum
- Cleanse.
- Apply a pea-sized amount of copper peptide serum on slightly damp skin.
- Seal with a cream (our Copper Peptide Night Cream or your barrier cream).
- Log the application — consistency beats concentration chasing.
Timeline
Most users who photograph weekly notice changes in the 3–6 week window. Same bathroom light, same distance. See our before/after protocol.
Who should patch-test
Sensitive skin, broken barrier, or active irritation — patch test first. Cosmetic only; not for treating disease.
Shop copper formats
Cosmetic / food-supplement information. Not medical advice. Results vary.