GHK-Cu
Copper-binding tripeptide
How researchers describe GHK-Cu
GHK forms a stable 1:1 complex with Cu(II); preclinical work documents modulation of MMP-2, decorin, antioxidant gene expression, and copper-dependent enzymes in cultured fibroblasts.
- Copper transport / SOD3
- MMP-2 / TIMP-2
- Decorin synthesis
Refrigerated reconstituted. Lyophilized: −20°C, light-protected.
Independent US lab tested
- ✓ Independent US laboratory analysis (HPLC, MS) per lot
- ✓ Reported purity ≥99.4%
- ✓ Lot-traceable COA available on request
- ✓ Sealed glass vial, butyl stopper, crimp cap
- Pickart & Margolina, 2018 — GHK regenerative actions, Int J Mol Sci
- Pickart et al., 2015 — GHK and DNA, Biomed Res Int
What labs are saying
Common researcher questions
Is this for human use?+
No. All X Factor research peptides are RUO — sold solely for in-vitro and non-clinical preclinical research. Not for human or veterinary use, food, supplement, cosmetic, or therapeutic application.
How is purity verified?+
Every lot is analyzed by an independent US laboratory using HPLC (and MS where applicable). COA available per lot — request via contact form.
How is it shipped?+
Lyophilized peptide in a sealed glass vial, packed in discreet outer packaging, shipped from our US fulfillment partner. Blends ship with cold-pack on request.
Can I get a COA before ordering?+
Yes — contact us with the SKU and we will email the most recent lot COA. We also publish the COA vault to verified researchers post-purchase.
Restock for OOS items?+
Use the Notify-Me form on the catalog page. We email when the lot is QC-passed and live. No spam, single-use.