GHK-Cu (also known as Copper Peptide, Copper tripeptide-1) is a copper-binding tripeptide extensively studied in skin and hair research. This page covers what the published research does — and does not — establish about it in relation to skin and hair health.
GHK-Cu is researched for Skin remodeling & collagen, Wound healing, Hair follicle support — which is why it appears in discussions of skin and hair health.
Research status: Well-studied in vitro and in topical human cosmetic research.
How GHK-Cu is thought to work
GHK-Cu is a copper-binding tripeptide that occurs naturally in the body and declines with age. In laboratory and topical research it appears to influence genes involved in tissue remodeling and to support collagen and antioxidant activity, which is why it is one of the most-studied peptides in cosmetic science.
What it does not establish
Most human evidence is topical/cosmetic. Systemic use is far less studied.
Nothing on this page is a recommendation to use GHK-Cu, and Selpho publishes no dosing, reconstitution or sourcing information. Read how we decide what goes in the library.
Commonly researched alongside
Other peptides researched for Skin & Hair
A popular research blend combining GHK-Cu, BPC-157 and TB-500 for skin and recovery.
A research blend adding KPV to the GLOW components for anti-inflammatory support.
A synthetic peptide widely studied for tissue repair and gut health.
Frequently asked questions
Well-studied in vitro and in topical human cosmetic research. Research relevant to this area covers skin remodeling & collagen, wound healing, hair follicle support. That is a description of where the research points, not evidence that it will work for you — and Selpho does not provide dosing or medical advice.
Well-studied in vitro and in topical human cosmetic research.
Most human evidence is topical/cosmetic. Systemic use is far less studied. Always speak to a licensed healthcare professional before considering any peptide.
It is best known in skin and hair research — collagen and skin remodeling, wound healing, hair-follicle support, and antioxidant effects — mostly in topical formulations.
Copper peptides like GHK-Cu are widely used in cosmetics and have supportive in-vitro and topical human research, though results vary by formulation and concentration.
Is GHK-Cu right for your situation?
Describe your goals and the free Peptide Advisor will match them against the research — no signup, no sales pitch.
Ask the Advisor — freeThis page is for educational purposes only and is not medical advice, a diagnosis, or a recommendation to use any compound. It contains no dosing or purchase information. Always consult a licensed healthcare professional before considering any peptide.