How to store GHK-Cu
Practical storage protocol for GHK-Cu: temperature, light, reconstitution timing, and shelf life in a research setting.
Lyophilised (freeze-dried) storage
Unreconstituted GHK-Cu, like most research peptides, is stable when stored in its original sealed vial at -20°C for long-term storage. For short-term use (under 3 months), refrigeration at 2-8°C is acceptable. The vial must be protected from direct light and moisture.
Peptify dispatches GHK-Cu in temperature-tolerant packaging from the UK, usually arriving within 24-48 hours of dispatch.
After reconstitution
Once GHK-Cu is reconstituted with bacteriostatic water (BAC water, 0.9% benzyl alcohol), the solution should be stored at 2-8°C (refrigerated) and used within 28 days. Bacteriostatic water's preservative system inhibits microbial growth for roughly four weeks after first puncture — significantly longer than sterile water, which must be used immediately.
Avoid freeze-thaw cycles. Never leave the vial at room temperature for extended periods, and keep it in its original rubber-stoppered vial to minimise contamination risk.
Shelf life and quality verification
Peptify publishes a batch-specific expiry date on every GHK-Cu COA, alongside HPLC chromatogram data and mass spectrometry confirmation. The full Certificate of Analysis for your specific batch is downloadable from the product page.
Buy GHK-Cu for research
99%+ HPLC-verified GHK-Cu in stock. Every vial ships from the UK with a batch-specific Certificate of Analysis. Same-day dispatch on orders before 1pm.
Frequently asked questions
What does GHK-Cu do in research?
GHK-Cu stimulates collagen types I, III, and V, alongside elastin and proteoglycans. It is studied in the skin-regeneration, epithelial-barrier, and tissue-remodelling research literature.
What is the difference between 50mg and 100mg?
Both contain the same 99%+ purity GHK-Cu. The 100mg vial provides a larger quantity for extended research protocols.
Is GHK-Cu the same as copper peptide?
Yes. GHK-Cu is the scientific name for the copper tripeptide (Glycyl-L-Histidyl-L-Lysine Copper Complex) commonly referred to as copper peptide.