What is the half-life of AHK-Cu?
AHK-Cu has a reported half life of ~2 hours topical, given topical (most common) or sub-q. That is why it is typically dosed 1-2x daily topical. A shorter half life means more frequent dosing to keep blood levels steady, a longer one lets you space doses further apart.
Quick facts
- Half-life: ~2 hours topical
- Route: Topical (most common) or sub-q
- Typical schedule: 1-2x daily topical
- Cycle length: 8-12 weeks
References
- The effect of tripeptide-copper complex on human hair growth in vitro — Pyo HK, Yoo HG, Won CH, Lee SH, Kang YJ, Eun HC, Cho KH, Kim KH — Archives of Pharmacal Research, 2007;30(7):834-9
Pepdex is an editorial reference, not medical advice. Peptides vary in legal and approval status by country, many are research compounds without full human safety data. Talk to a qualified clinician before starting anything.
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Last updated 2026-06-06.