Copper Tripeptide-1
GHK-Cu — the copper peptide behind a fast-growing category of renewal- and firmness-focused skincare.
What is Copper Tripeptide-1?
Copper tripeptide-1, commonly known as GHK-Cu, is a copper-complexed tripeptide with a distinctive blue colour. It is a sought-after active in premium "peptide" skincare positioned around skin renewal and a firmer, smoother appearance. Because it is a copper complex, it needs a little formulation care to keep its performance and colour stable.
Key benefits in cosmetic formulations
- On-trend copper peptide with strong premium positioning
- Used in renewal-, firmness- and post-procedure-style formulations
- A recognisable hero ingredient for peptide serums
- Distinctive blue colour communicates the active on-shelf
Typical use level & formulation notes
- Use level
- 0.05–2%
- Solubility
- Water-soluble
- pH / stability
- Best in a mildly acidic to neutral range
- Form
- Powder
- Notes
- Avoid direct combination with strong chelators and with high-dose direct acids (e.g. undiluted vitamin C) in the same phase, which can disturb the copper complex; introduce in the water/cool-down phase.
Guidance only — always confirm use levels and compatibility against the current technical data sheet and your own stability and safety testing.
Where it's used
- Peptide renewal serums
- Firming & post-procedure care
- Premium eye and night treatments
Documentation & sourcing
Every batch ships with a Certificate of Analysis (CoA) and Safety Data Sheet (SDS). We focus on hard-to-source specialty actives with small minimum order quantities, so indie brands and lab formulators can buy realistic amounts and scale later — stocked in and shipped across the EU.
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