Research chemical — not approvedaka Copper tripeptide-1, Copper peptide, Gly-His-Lys copper
GHK-Cu — Complete Research Guide (2026)
Last updated 2026-06-25
A copper-binding tripeptide present naturally in human plasma. Widely used in topical cosmetic formulations; studied for skin and wound-related effects.
Full sourced guide in progress
We publish a complete, primary-source-cited guide only once we can verify at least five PubMed/clinical references. This profile is intentionally a stub until then — we do not pad pages with unverified citations. The quick facts above reflect what we can state reliably today.
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This article is for educational and research purposes only. Peptides discussed here are not approved for human consumption by the FDA, EMA, or equivalent regulators outside of specific clinical contexts. Always consult a licensed medical professional before any therapeutic use.