The best certificate chain in this batch — named lab, lab-side test IDs, measured mass published — attached to the weakest review record and an inflated trust claim on the vendor's own blog. Both halves are true at once.
Verification score: 7/10 · Independent rating: 4.1 (174 reviews) · Lab: North American Diagnostics · Researched: 5 September 2026
Affiliate disclosure: PS Peptides is one of our affiliate partners — code HEALTH gives 10% off. We earn a commission on referred orders; the score and caveats above are unaffected by the partnership.
What checks out
- Names North American Diagnostics (Austin, TX) as its lab; the lab operates its own batch-lookup portal, and the certificate we checked carries lab test ID PSP-0028020. source
- Certificates publish measured mass against label (5.03mg measured vs 5mg label on the example) alongside HPLC purity — the net-content criterion most vendors miss. source
- Downloadable PDF certificates on every product page, no account needed; buyers are told to match the vial lot to the certificate lot. source
- Full basket with sized pricing, including the widest GLP range in this batch (tirzepatide 10–60mg, retatrutide 5–40mg). source
- Legal entity disclosed: ProSupply Services LLC. source
What we could not verify
- No street address — the site says 'New Jersey-based' with a '25-person team' and nothing more.
- Certificate PDFs are hosted on the vendor's own server; the lab's lookup portal needs JavaScript, so we could not complete a lookup from outside.
Prices, read on 5 September 2026
Who you are buying from
- ProSupply Services LLC (d/b/a PSPeptides) · 'New Jersey-based' — no street address published source
Contradictions & flags
- The vendor's own blog claims a '5-star Trustpilot rating from thousands of verified customers'; the live Trustpilot record is 4.1 across 174 reviews. source
- Lowest Trustpilot average in this batch (4.1). Read the one-star reviews before ordering; the themes are shipping delays and support response.
Rubric breakdown
| Criterion | Evidence |
|---|
| ✔ | Names its testing laboratory
The lab is identified by name on the vendor's site; you can look it up and contact it. | North American Diagnostics named; lab operates nadiagnostics.com with a batch-lookup portal |
| ✔ | Certificates verifiable at the lab, not just the vendor
COAs are hosted on the testing lab's own system or carry a lab-side lookup code. | Certificates carry lab test IDs (e.g. PSP-0028020) checkable via the lab's lookup portal (portal requires JavaScript; PDFs vendor-hosted) |
| ✔ | Batch-specific COAs matched to lots
Certificates carry lot numbers that match shipped vials, not one generic PDF. | Test ID / batch ID on each certificate; buyers told to match vial lot to certificate |
| ✔ | Publishes measured net content vs label
COAs state measured milligrams against the labelled amount, not purity % alone. | Measured mass vs label published (5.03mg measured vs 5mg label on BPC-157 example) |
| ✔ | COAs and pricing viewable without an account
Open the COA library and catalog logged out. | Downloadable PDFs on every product page and public pricing without an account |
| ✔ | Independent review base (50+ on an external platform)
Check the vendor on Trustpilot or an equivalent platform the vendor cannot edit. | 4.1 / 174 on Trustpilot (verified 5 Sep 2026) |
| ✘ | No contradictions among its own claims
Compare testing/lab statements across the vendor's own pages. | Not awarded |
| ✔ | Vial sizes stated with prices
Catalog or product pages show milligrams next to every price. | Sizes stated with prices across the full GLP range |
| ✘ | Publishes a legal entity and street address
The company's registered name (LLC, Inc., s.r.o. …) and a street address appear on the vendor's own Contact, About or Terms pages — not only a brand name, a city, or hidden page markup. | Not awarded |
| ✘ | No misleading trust signals or buyer-protection workarounds
Compare any on-site review score or badge with the independent platform; check whether the vendor only takes, or pushes you toward, payment rails you cannot dispute; check FDA and BBB records. Awarded unless one of these is on record. | Not awarded |
Verified list prices
| Compound | Size | Price (USD) | Read on | Prior |
|---|
| BPC-157 | 5mg | $49.99 | 2026-09-05 | — |
| BPC-157 | 10mg | $89.99 | 2026-09-05 | — |
| NAD+ | 100mg | $44.99 | 2026-09-05 | — |
| Retatrutide | 5mg | $39.99 | 2026-09-05 | — |
| Semaglutide | 10mg | $64.99 | 2026-09-05 | — |
| TB-500 | 10mg | $79.99 | 2026-09-05 | — |
| Tirzepatide | 10mg | $54.99 | 2026-09-05 | — |
Frequently asked
Is PS Peptides legit?
The best certificate chain in this batch — named lab, lab-side test IDs, measured mass published — attached to the weakest review record and an inflated trust claim on the vendor's own blog. Both halves are true at once. As of 5 September 2026, PS Peptides scores 7/10 on our verification rubric and has an independently viewable rating of 4.1 (174 reviews).
Does PS Peptides publish third-party COAs?
Names North American Diagnostics; certificates carry lab test IDs, are downloadable on every product page without an account, and publish measured mass against label (5.03mg vs 5mg on the example). Widest GLP range in this batch with sized pricing. Legal entity disclosed: ProSupply Services LLC.
What should buyers watch for with PS Peptides?
Lowest Trustpilot average of the batch (4.1), and the vendor's own blog claims a '5-star Trustpilot rating from thousands of customers' that the live record does not support. No street address — 'New Jersey-based' only. Certificate PDFs are vendor-hosted; the lab's lookup portal needs JavaScript.
How much is BPC-157 at PS Peptides?
5mg was $49.99 on 5 September 2026 (list price on the product page). Prices move; we record what we saw and when.
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