Peptide • Skin, hair & connective tissue
GHK-Cu
Also called Copper tripeptide-1
What it is, the potential benefits being studied, and what the evidence supports right now.
Early human research•Status depends on the exact product•Checked 2026-08-21
01 • Start here
Potential benefits being studied.
Skin appearance, wound biology, and hair-related claims.
- Recovery & tissue research
- Skin & hair
02 • Why it stands out
The simple explanation.
GHK-Cu is a naturally occurring copper-binding peptide connected with skin remodeling, collagen, wound, and hair biology.
03 • Research highlight
Why researchers are interested.
It stands out most in skin and repair research, where its signaling role is especially interesting.
Evidence detailsStudy limits, status, and safety context
Study summary: In a small randomized post-laser study, participants using the GHK-Cu product reported higher satisfaction. Its copper-binding role also keeps it central to research on skin remodeling, collagen, wound biology, and hair.
What to keep in mind: The study had 13 completers, and its blinded objective measures did not show significant improvement in wrinkles, overall skin quality, or erythema. Topical cosmetic research also does not establish systemic or injectable effects.
Potential benefits describe research questions, not a promise that a product will produce the same result in a person.