Verdict: Purgo Labs, on the evidence: 10/10 rubric points against 6/10.
Purgo Labs: 10/10 · Trustpilot 4.7 (80 reviews) · SteriGenix · Freedom Diagnostics | Particle Peptides: 6/10 · Trustpilot removed · Liquilabs s.r.o.
Disclosure: Purgo Labs is our affiliate partner; we earn nothing from Particle Peptides. Scores are produced by the published rubric, which has no partnership input.
The 10 criteria, side by side
| Criterion | Purgo Labs | Particle Peptides |
|---|
| Names its testing laboratory | ✔ SteriGenix and Freedom Diagnostics named per lot | ✔ Liquilabs s.r.o. printed on certificates |
| Certificates verifiable at the lab, not just the vendor | ✔ Verify-at-lab links to sterigenixanalytical.com / freedomdiagnosticstesting.com | ✘ Not awarded |
| Batch-specific COAs matched to lots | ✔ Lot numbers (e.g. PL-BPC-05) with test dates per batch | ✔ Certificate vault lists batch numbers (e.g. PO-2026346) |
| Publishes measured net content vs label | ✔ Measured net peptide published per lot (e.g. BPC-157 lot PL-BPC-05: 11.16mg vs 10mg label) | ✔ Certificate reports 6.38mg measured vs 5mg label (BPC-157 5mg with mannitol) |
| COAs and pricing viewable without an account | ✔ COAs on product pages without login | ✔ Certificate vault and pricing viewable without an account |
| Independent review base (50+ on an external platform) | ✔ 4.7 / 80 on Trustpilot (re-read 6 Sep 2026; 4.7 / 75 on 14 Aug 2026) | ✘ Not awarded |
| No contradictions among its own claims | ✔ No contradictions found across site claims (checked Aug 2026) | ✘ Not awarded |
| Vial sizes stated with prices | ✔ Product pages state vial size with price (e.g. BPC-157 10mg at $44.99; 24 dated size+price readings on record) | ✔ Sizes stated with prices (BPC-157 5mg €31.99, TB-500 10mg €79.99) |
| Publishes a legal entity and street address | ✔ PurgoLabs LLC (Arizona) · 10105 E Via Linda St Bld 103, Scottsdale, AZ — on-site (6 Sep 2026) | ✔ PARTICLE s.r.o. (ID 47858541) · Kolonáda 4490/18, Lučenec 984 01, Slovakia — /content/4-company-information |
| No misleading trust signals or buyer-protection workarounds | ✔ No on-site review badge contradicting the independent record; card payment accepted; no regulator action found (checked 6 Sep 2026) | ✘ Not awarded |
| Total | 10/10 | 6/10 |
Like-for-like prices
No compound-and-size pair with dated prices from both vendors yet.
Caveats
Purgo Labs: Smaller independent review base than several competitors (80 reviews). The catalog is peptide-focused, so researchers also working with SARMs or broader research chemicals will need a second supplier.
Particle Peptides: Trustpilot profile REMOVED, while the homepage shows a self-hosted '4.9/5 from 529 reviews' badge styled like a trust widget. A public dispute over whether its lab, Liquilabs, is independent — the vendor's own rebuttal concedes 'minor deviations (±5–10%) are common'. Prices in EUR, not comparable in our USD index. Retatrutide sold as 'GLP-3' (CAS printed). No semaglutide, tirzepatide or NAD+.
Frequently asked
Is Purgo Labs better than Particle Peptides?
Purgo Labs, on the evidence: 10/10 rubric points against 6/10. Every point is a fact you can check on either vendor's site; both are scored by the same published rubric.
Is Particle Peptides legit?
Particle Peptides scores 6/10 on our rubric, has no independently viewable review record, and names its lab (Liquilabs s.r.o.). Caveat: Trustpilot profile REMOVED, while the homepage shows a self-hosted '4.9/5 from 529 reviews' badge styled like a trust widget. A public dispute over whether its lab, Liquilabs, is independent — the vendor's own rebuttal concedes 'minor deviations (±5–10%) are common'. Prices in EUR, not comparable in our USD index. Retatrutide sold as 'GLP-3' (CAS printed). No semaglutide, tirzepatide or NAD+.
Do you earn money from either vendor?
Purgo Labs is our affiliate partner and we earn a commission on referred orders; we earn nothing from Particle Peptides. Scores come from the rubric, which has no partnership input.
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