Verdict: Purgo Labs, on the evidence: 10/10 rubric points against 6/10.
Purgo Labs: 10/10 · Trustpilot 4.7 (88 reviews) · SteriGenix · Freedom Diagnostics | Biotech Peptides: 6/10 · Trustpilot removed · MZ Biolabs
Disclosure: Purgo Labs is our affiliate partner; we earn nothing from Biotech Peptides. Scores are produced by the published rubric, which has no partnership input.
The 10 criteria, side by side
| Criterion | Purgo Labs | Biotech Peptides |
|---|
| Names its testing laboratory | ✔ SteriGenix and Freedom Diagnostics named per lot | ✔ MZ Biolabs (2102 N Country Club Rd, Tucson, AZ) printed on the BPC-157 10mg certificate, analyst named — read 19 Sep 2026 |
| 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 | ✔ Lot 3140012 on the certificate, analysis 15 Jul 2026; certificate filename carries lot and date |
| 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) | ✘ Not awarded |
| COAs and pricing viewable without an account | ✔ COAs on product pages without login | ✔ Catalog, prices and certificate PDFs viewable without an account (18–19 Sep 2026) |
| Independent review base (50+ on an external platform) | ✔ 4.7 / 88 on Trustpilot (re-read 18 Sept 2026; was 4.7 / 80 on Trustpilot) | ✘ Not awarded |
| No contradictions among its own claims | ✔ No contradictions found across site claims (checked Aug 2026) | ✔ 'Independently tested' and '>99% purity' claims match the MZ Biolabs certificate (99.88%); no on-site rating claim found |
| 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 10mg $92; TB-500 10mg $124 — 18 Sep 2026) |
| Publishes a legal entity and street address | ✔ PurgoLabs LLC (Arizona) · 10105 E Via Linda St Bld 103, Scottsdale, AZ — on-site (6 Sep 2026) | ✘ Not awarded |
| 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) | ✔ No on-site review badge contradicting the independent record; no regulator action found (checked 19 Sep 2026) |
| Total | 10/10 | 6/10 |
Like-for-like prices
| Compound | Purgo Labs | Biotech Peptides | Lower |
|---|
| BPC-157 10mg | $44.99 (2026-08-03) | $92.00 (2026-09-18) | Purgo Labs |
| TB-500 10mg | $49.99 (2026-08-14) | $124.00 (2026-09-18) | Purgo Labs |
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.
Biotech Peptides: Certificate is a vendor-hosted PDF with no lab-side lookup and no measured net content — purity only, so it cannot tell you how many milligrams are in the vial. Trustpilot profile REMOVED (read 19 Sep 2026). No legal entity name is printed anywhere we could find; the address is a suite in a Las Vegas office building. Prices sit at the top of our index for the basket.
Frequently asked
Is Purgo Labs better than Biotech 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 Biotech Peptides legit?
Biotech Peptides scores 6/10 on our rubric, has no independently viewable review record, and names its lab (MZ Biolabs). Caveat: Certificate is a vendor-hosted PDF with no lab-side lookup and no measured net content — purity only, so it cannot tell you how many milligrams are in the vial. Trustpilot profile REMOVED (read 19 Sep 2026). No legal entity name is printed anywhere we could find; the address is a suite in a Las Vegas office building. Prices sit at the top of our index for the basket.
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 Biotech Peptides. Scores come from the rubric, which has no partnership input.
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