SKIN, GLASS SKIN & K-BEAUTY · DEEP DIVE
Copper Peptides in Cosmetic Formulation: Working With Raw GHK-Cu
For cosmetic chemists and formulation researchers: what published preformulation work says about GHK-Cu’s solubility, stability and delivery, and why the copper complex matters.
In 60 seconds
GHK-Cu is water-soluble and has been characterised for topical delivery, including its stability under stress conditions measured by HPLC. The copper complex is what gives it its blue colour and much of its studied activity.
- The copper complex gives GHK-Cu its colour and much of its studied activity.
- Published preformulation work measured solubility and HPLC stability.
- Raw powder is for research and formulation only.
What it is
The copper(II) complex of the tripeptide glycyl-L-histidyl-L-lysine, supplied as a blue powder for research and formulation work.
What researchers looked at
Solubility, distribution coefficients and stability under stressed conditions (HPLC), and the biology of GHK in skin.
What’s still unknown
Penetration through intact skin varies with the vehicle; formulators test their own systems.
Why the copper matters
GHK binds copper(II) tightly, and the complex is proposed to be the active form in wound-healing and skin-repair research. A 2015 review describes GHK-Cu stimulating collagen, dermatan sulfate, chondroitin sulfate and decorin.
Preformulation data
A 2016 preformulation study characterised native GHK-Cu for dermal delivery: solubility and distribution coefficients were measured, and a validated stability-indicating reversed-phase HPLC method tracked its stability under stressed conditions. Data like these guide pH, vehicle and storage choices.
Handling raw powder
Raw GHK-Cu powder is supplied for laboratory and formulation research only — not for human use. Store it dry and cool, protected from light and moisture, and check every batch against its certificate of analysis.
KEY TAKEAWAYS
- The copper complex gives GHK-Cu its colour and much of its studied activity.
- Published preformulation work measured solubility and HPLC stability.
- Raw powder is for research and formulation only.
Sources · PubMed
- Physicochemical characterization of native glycyl-l-histidyl-l-lysine tripeptide for wound healing and anti-aging: a preformulation study for dermal delivery · Pharm Dev Technol 2016 · PMID 25384620
- GHK Peptide as a Natural Modulator of Multiple Cellular Pathways in Skin Regeneration · Biomed Res Int 2015 · PMID 26236730
