Independent peptide vendor verification.
Merit Verified catalogs independent COA evidence for peptide vendors — 3,196 third-party COAs linked to peptide, lab, lot, batch, and test date — and distills it into a single auditable Merit Score (0–100) per vendor, derived only from what's observable. The score and its full methodology are published below.
- COAs on file
- 3,196
- Lots tracked
- 1,166
- Independent labs
- 22
- Active vendors
- 52
Updated each time the catalog re-indexes.
Our principles
No paid placement
Trust signals cannot be bought. No vendor pays to appear higher in the directory or to remove a flag.
Methodology in the open
Merit Verified's Merit Score (0–100) is derived only from observable verification evidence — independent COAs, the labs behind them, measured purity, evidence breadth, and longevity. No reviews, no third-party rankings, no price. The full rubric and weights are published below; every number traces to its inputs.
Evidence updates as tests land
The catalog updates on a rolling basis as new third-party COAs are indexed. The reading you see is current as of the most recent re-index — not a permanent verdict.
No commercial entanglement
The Merit Verified team does not manufacture peptides, hold equity in vendors we surface, accept compensation tied to specific listings, or process orders.
The Merit Score
A single 0–100 measure of how much observable verification evidence a vendor has earned. No reviews, no third-party rankings, no price. A vendor earns up from zero — one with no independent COA on file is shown as Unscored, never a flattering middle number.
Each COA is weighted by the testing lab's reputation and decayed by age — a year-old test is worth about half a fresh one.
0 points below 95% purity; full 25 at 100%. Only COAs that actually report a measured value count.
1 lab = 8 pts, 2 labs = 14 pts, 3+ labs = 20 pts. Multiple labs are hard to fake and indicate genuine multi-source testing.
Distinct peptides and lots tested. A vendor with deep coverage across many compounds is harder to game than a single well-tested product.
1 point per year in operation. Longevity is weak evidence on its own but a useful tie-breaker.
Vendors marked scam-flagged are floored to 0 regardless of evidence. Scores recompute on every re-index; each vendor's per-component breakdown is shown on its profile.
Score tiers
What COAs can and can't tell you
A COA certifies a tested lot — not the specific vial you receive. Unless you've matched the batch number on your vial to the batch number on the COA, the test result covers the batch in aggregate. A lot can be retested; your individual unit can't.
Most COAs here are from Disclosed Labs, a third-party aggregator. Merit Verified has not independently commissioned most of these tests — we index what is publicly available. A small number are sourced directly from the testing lab ("Lab-direct"), which is the strongest provenance. The source is labelled on every COA card.
Purity ≠ safety. A purity result measures peptide identity and content — it does not screen for residual solvents, heavy metals, endotoxins, or microbial contamination. We don't yet index those tests.
A short note on what this is not
This is not medical advice. The research-only regulatory status on most peptide listings is not a marketing flourish — it's the actual legal framing. Talk to a clinician who knows your full picture before doing anything with this information.
This is not a sales channel. Merit Verified does not stock, ship, or process orders. Listing URLs go directly to vendor sites. Vendors are ordered by the observable evidence on file — COA volume, lab diversity, and recency — never by payment, and the order is not an endorsement to purchase.
This is not the whole picture. Peptide vendors operate in a grey market with limited public disclosure. We score what's observable. Where evidence runs thin, we say so.