What are the side effects of AHK-Cu?
The most commonly reported AHK-Cu side effects are scalp irritation early, mild itching, rare: contact dermatitis. Most are mild and tend to be dose dependent. It is generally avoided with wilson's disease. Human clinical evidence for AHK-Cu is limited, so this reflects reported and observed effects, not a complete safety profile.
Reported AHK-Cu side effects
- Scalp irritation early
- Mild itching
- Rare: contact dermatitis
Who should avoid it
- Wilson's disease
- Active scalp infection
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.