GHK-Cu
Research-use contextResearch-use peptide · also: ghk cu, copper peptide, copper tripeptide-1
A naturally occurring copper-binding tripeptide, used mainly as a topical cosmetic ingredient.
People commonly track it for
Most often logged in a skin / hair context; the topical-cosmetic use differs from injectable/systemic use.
Evidence summary
Best known as a cosmetic ingredient. Systemic/injectable use for a health condition is not established or approved.
Regulation & source status
No systemic FDA approval. Injectable/systemic forms marketed for a condition would be unapproved new drugs; deferred to a later FDA compounding review.
Route considerations
Topical cosmetic use is distinct from injectable use. We don't provide preparation or technique guidance for any route.
Storage considerations
Often sold as a powder for reconstitution; unregulated products have no verified storage or stability data. Storage specifics belong to a pharmacist, not this profile.
Interaction & context review
Because human data is limited, interactions aren't well characterized. If you track it alongside other items or medications, review the full list with a clinician or pharmacist.
Track this item
You can log this as a custom peptide / medication-context item — record your own source status, route, storage note, and a schedule, and include it in an export for your clinician. StackWise doesn't add a dose.
Track this itemPeptide safety & source review
Sources
- FDA — Certain Bulk Drug Substances (compounding safety review)
- FDA — PCAC meeting, July 23–24, 2026 (503A bulks review)
Source reviewed: 2026-07-23.