25% below the 5 mg middle price
MDx BioAnalytical Laboratory, AV Analytics, 2026-09-06
49 sellers, 52 listings, 4 vial sizes, read from each store's public product feed on 2026-09-30. A seller with a recent certificate from a named lab ranks above a cheaper one without. Every card says why it sits where it does.
3 public certificate files we opened name PE-22-28. That is a count of files, not a grade, and compounds are not ranked against one another. A seller-published certificate is not a blind test. Certificate search.
Some seller links may pay this site when you buy through them. A payment never changes a seller's tier or rank, and no seller has a say in any page.
Best value with a certificate: Bulk Peptide Supply, $25.0 for 5 mg, $5.00 per mg. PE-22-28 5 mg middle price is $6.64 per mg across 8 sellers.
25% below the 5 mg middle price
MDx BioAnalytical Laboratory, AV Analytics, 2026-09-06
13% below the 5 mg middle price
Freedom Diagnostics, 2026-06-13
13% below the 5 mg middle price
Freedom Diagnostics, 2026-06-13
13% below the 5 mg middle price
Freedom Diagnostics, 2026-06-13
96% above the 5 mg middle price
Certificate with a batch number, no laboratory named
13% above the 5 mg middle price
Site says it tests; no certificate could be found
50% above the 5 mg middle price
Site says it tests; the certificates sit behind a login or a bot wall and none could be read
532% above the 5 mg middle price
Site says it tests; no certificate could be found
8 of 8 listings at 5 mg, sorted grade first, then price per mg.
PE-22-28 was first read on 2026-09-30. Middle price $5.89 per milligram across 49 sellers. A week-by-week line appears after the next finished weekly walk. One week is a snapshot, not a history.
The figure is the same ungated market median the range on this page uses: every seller found. Certificate tier still ranks the cards. The purity gate is written and off, so this is not a tested-sellers-only series.
We never charge for knowledge. No vendor has a say in what a page says. Sellers are ranked by the certificate they publish, then by price. Every seller, graded · Laboratories named · How this is counted