Free shipping on orders $80+ · Subscribe & save 22%
Zone 01 — The Serum
Highest conversion impact
3 clinical claim stats
How to use — 3 steps
The science — concentration
Build your routine
94% saw visibly firmer skin in 4 weeks
CYOU 1% GHK-Cu Advanced Repair Serum
4.9 · 1000+ reviews Derm tested
Cruelty-free
60-day returns
Clinically trialled
1
60-day hassle-free returns
- Visibly firmer skin in 4 weeks
- 33% fewer deep forehead lines at 12 weeks
- Fragrance-free — safe for sensitive skin
$38$49