Peptide Docket
Regulatory IntelligenceGet the brief
Home//GHK-Cu

What is GHK-Cu?

By The Docket DeskResearched & sourcedUpdated 18 Jun 2026

GHK-Cu is a copper-binding tripeptide widely used in topical cosmetics and studied for skin and wound repair. Injectable use is promoted for anti-aging. It is not an FDA-approved drug.

What the evidence shows

EVIDENCE GRADE · MIXED · TOPICAL BETTER-STUDIED THAN INJECTABLE

GHK-Cu has a body of cosmetic and laboratory research for topical skin effects; evidence for injectable systemic use is weaker. Regulatory status changed in April 2026 (see status box).

Is it legal?

GHK-Cu is not FDA-approved. In April 2026 it was removed from FDA Category 2 but not moved to the approved Category 1 list, so legal compounding is not authorized; the PCAC reviews it on before end of Feb 2027.

FDA approvalNot approved
Compounding statusRemoved from Category 2 (Apr 2026, nominations withdrawn) · not on Category 1 — compounding not authorized
Route noteInjectable removed from Cat 2; non-injectable removed from Cat 1 — both now in limbo
Under FDA reviewPCAC · before end of Feb 2027
Use under reviewSkin aging
Earliest pharmacy accessLate 2026–Q1 2027 (if cleared)
Will GHK-Cu become legal in 2026?+
Not automatically. The committee meets before end of Feb 2027; a favorable vote is a recommendation only — the FDA must then issue a final rule, which typically takes months. Realistic legal compounded access is late 2026 to Q1 2027, and only if both steps go through.
Is “research-grade” GHK-Cu the same as a medicine?+
No. Material sold “for research use only” is not made or tested to pharmaceutical standards, is not authorized for human use, and carries no guarantee of identity, purity or sterility. This site does not link to or evaluate these sellers.

Primary sources: FDA 503A interim list (Apr 2026 update) · FDA Advisory Committee Calendar; Federal Register docket FDA-2025-N-6895.

Medical & editorial disclaimer. This article is independent reference information, not medical advice and not a recommendation to use any substance. GHK-Cu is not FDA-approved. Nothing here should be used to obtain, prepare, or self-administer any drug. Talk to a licensed clinician about your health. Peptide Docket is not affiliated with the FDA and does not sell peptides.