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GHK-Cu Dosing Guide
Evidence-based dosing protocols across 2 administration approaches.
Medical Disclaimer
This dosing information is for educational reference only. Dosing decisions require physician oversight. Do not self-prescribe or adjust dosing without consulting a qualified healthcare provider.
Dosing Protocols
Parenteral (Injection)
Off-Label ClinicSubcutaneousDose Range
1–2 mg
Frequency
daily
Duration
Day 1-15: 1 mg/d; Day 16-30: 2 mg/d; then 30 days off
Source
PMC6073405; PMC8789089
No official human dosing guidelines. Protocols based on clinical practice.
Topical (Skin)
Off-Label ClinicTopicalDose Range
0.5–5 mg
Frequency
daily
0.5-5% concentration applied 1-2×/d. Double-blind trial: 55.8% wrinkle reduction vs control at 8 wk.
Administration
Delivery methods
Topical creamSubcutaneous injectionMicroneedling
⏳
Pending physician review — consult your provider before use.Updated 2026-04-10