Exact claim · Version 1 · Reviewed 2026-07-23

“GHK-Cu has been studied in people.”

A verdict on this wording and scope, not a universal grade for GHK-Cu.

01 · Verdict

Supported with scope

Yes, but the cited topical trial had 13 completers, found no significant objective improvement in erythema, wrinkles, or skin quality, and reported higher patient satisfaction. It does not establish broader outcomes or other routes.

Evidence basis: Randomized human outcomes
Scope: A specific topical copper-tripeptide formulation after CO2 laser resurfacing.
Category: Clinical outcomes

02 · Primary record

Check the attached evidence

01Effects of topical copper tripeptide complex on CO2 laser-resurfaced skinPubMed · Archives of Facial Plastic Surgery · Randomized trial · 2006
Supports the scoped claim

Editorial review: Internal editorial review recorded
Responsible editor: Anthony Treviso · Founder and responsible editor
Clinical-review boundary: Not independently medically reviewed.