How we vet suppliers

Only suppliers that pass these checks can advertise on HPR. Payment does not buy a place, and a supplier that stops meeting them is removed.

The checks

1. Independent testing. Batches must be tested by a third-party analytical lab, not in-house.
2. Verifiable certificates. Each certificate must be checkable on the lab’s own website, using a task number and key, so readers can confirm it is genuine and unaltered.
3. More than purity. We look for content (how much is actually in the vial), purity, and where relevant endotoxin, sterility and heavy-metal results.
4. Honest labelling. No health claims on product pages, and research-use-only status stated clearly where it applies.
5. Re-checks. We re-check certificates as new batches arrive.

What vetting does not mean

Vetting tells you a supplier’s products are what the label says. It does not mean a peptide is safe or effective for you, and it is not a recommendation to use one. Many peptides are not approved for human use.

Money

HPR may earn a commission when you buy through an ad. See our advertising disclosure.