AHK-Cu Copper Peptide — Hair Growth Formula
Tripeptide-3 (AHK-Cu) — Copper peptide complex — stimulates follicular vascularization and restores hair density.
AHK-Cu (Alanine-Histidine-Lysine-Cu) forms a stable complex with copper ions mimicking serum albumin copper-binding capacity. It promotes follicular vascularization, collagen/elastin synthesis around the dermal papilla and IGF-1 expression.
Controlled study, 90 days, scalp tonic at 0.5%:
• +13% hair density (follicular density per cm2)
• +17% shaft thickness (trichoscopic measurement)
• −23% daily hair loss
Store at 2–8°C, sealed, away from light and oxidising agents. Avoid alkaline pH above 8. In products at pH 5.5–7.5, stability exceeds 24 months.
Measured Results
Independent peer-reviewed studies with profilometric and instrumental analysis under standardised conditions.
How to Use
Correctly incorporate Tripeptide-3 (AHK-Cu) into your cosmetic formula in three steps.
Dissolve in water phase
Dissolve at 0.1–1% in the aqueous phase at pH 5.5–7.5. Avoid strong chelating agents that can disrupt the copper complex.
Add in cooling phase
Add below 40°C after emulsification. Avoid alkaline pH above 8, as this destabilises the Cu complex.
Apply daily to scalp
Apply directly to scalp, focusing on thinning areas. Leave-on serums and tonics give best results. Use 1x daily for minimum 90 days.

