Compare peptide suppliers on price, purity and independent lab data.
The independent verification authority for the research-peptide market. We track every supplier's public pricing, lab-test what we can, and show you the price. No supplier pays to rank.
How the PSV Trust Score is calculated
Every supplier will earn a single 0–100 PSV Trust Score, built from four weighted pillars — and the heaviest one cannot be earned until we have tested the supplier ourselves. Lab testing is rolling out now; until then suppliers stay capped.
What the score is made of
The Lab pillar stays locked
A supplier can have glowing reviews and a tidy site, but until we put a vial through an accredited lab, the 40-point Lab pillar reads zero. Marketing cannot fill it.
It is a deliberately slow bar. A capped score is not a punishment — it is an honest statement that the most important evidence does not exist yet.
Every supplier we track, in one place
We track public pricing across 36 suppliers and update it continuously. Lab-verified trust scores arrive as testing rolls out — until then every supplier is marked PSV Tracked, and none pays to appear.
How we test and verify the evidence
A score is only as good as the test behind it. Ours follow the discipline of a testing body: measured, dated, and bound to a single batch.
Purity & content
We measure each sample against its label claim by HPLC–UV and LC–MS — the actual milligrams in the vial, not the milligrams on the box.
Dated & batch-bound
A result certifies one batch on one date. We publish the batch and the date, and we never let an old pass vouch for a new lot.
Independent by design
Affiliate links never move a ranking. We are funded by referrals, not by suppliers — and we publish the failures alongside the passes.