Copper Tripeptide-1, often discussed as GHK-Cu, is a high-interest cosmetic ingredient. Reliable sourcing begins with identity, composition and analytical context.
Confirm what is actually supplied
Ask for the exact INCI, chemical form, appearance, carrier or excipient content and basis of the stated purity. Color and solubility can be useful observations but are not substitutes for identity testing.
Formulation questions
Discuss solvent, pH, process temperature, compatible ingredients, target use level and packaging. Copper-containing systems can require deliberate color and compatibility decisions.
Commercial qualification
Compare sample and commercial specification, pack size, moisture protection, COA fields, MOQ, lead time and repeat-order consistency.
Buyer checklist
- Exact identity and composition
- Purity method and basis
- Solubility and pH guidance
- Packaging barrier
- Batch documents and recurring supply
Need a project-specific answer?
Send the peptide, format, quantity, market and documents you need.