Prime Bio Supply
UK supplier, independently tested
- Batches tested by Janoshik Analytical
- Certificates you can verify yourself
- Endotoxin, sterility and heavy-metal tests
Vetted suppliers
Suppliers we’ve checked
These suppliers advertise on HPR. They only appear here after passing our vetting, and payment never buys a place on this list.
Independent testing
Purity and content verified by a third-party lab, not the supplier.
Verifiable certificates
Every certificate must be checkable on the lab’s own website.
Safety panel
Endotoxin, sterility and heavy-metal results, not just purity.
Re-checked
We re-check new batches. Suppliers who slip are removed, publicly.
Featured
HPR may earn a commission from links on this page. Many compounds listed are sold for research use only and are not approved for human consumption. Educational content only — not medical advice. How we vet suppliers.