Verdict: Purgo Labs, on the evidence: 10/10 rubric points against 3/10.
Purgo Labs: 10/10 · Trustpilot 4.7 (80 reviews) · SteriGenix · Freedom Diagnostics | Sports Technology Labs: 3/10 · Trustpilot removed · MZ Biolabs · Colmaric Analyticals
Disclosure: Purgo Labs is our affiliate partner; we earn nothing from Sports Technology Labs. Scores are produced by the published rubric, which has no partnership input.
The 10 criteria, side by side
| Criterion | Purgo Labs | Sports Technology Labs |
|---|
| Names its testing laboratory | ✔ SteriGenix and Freedom Diagnostics named per lot | ✔ MZ Biolabs and Colmaric Analyticals named (6 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 | ✘ Not awarded |
| 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, pricing and certificate images 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 $56.99, TB-500 5mg $66.99, NAD+ 500mg $124.99) |
| Publishes a legal entity and street address | ✔ PurgoLabs LLC (Arizona) · 10105 E Via Linda St Bld 103, Scottsdale, AZ — on-site (6 Sep 2026) | ✘ 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) | ✘ Not awarded |
| Total | 10/10 | 3/10 |
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.
Sports Technology Labs: SARMs-first vendor — the peptide catalog is narrower, particularly in the GLP-1 class. Stated peptide purity is 96–99%, below the ≥99% some competitors claim.
Frequently asked
Is Purgo Labs better than Sports Technology Labs?
Purgo Labs, on the evidence: 10/10 rubric points against 3/10. Every point is a fact you can check on either vendor's site; both are scored by the same published rubric.
Is Sports Technology Labs legit?
Sports Technology Labs scores 3/10 on our rubric, has no independently viewable review record, and names its lab (MZ Biolabs · Colmaric Analyticals). Caveat: SARMs-first vendor — the peptide catalog is narrower, particularly in the GLP-1 class. Stated peptide purity is 96–99%, below the ≥99% some competitors claim.
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 Sports Technology Labs. Scores come from the rubric, which has no partnership input.
How does Sports Technology Labs test its products?
Sports Technology Labs uses a named third-party lab, MZ Biolabs, and posts the COA on each product page with recent batch numbers, HPLC purity, and mass-spectrometry identity results. SARMs are listed at a minimum 98% purity and peptides at 96–99%. The company also runs endotoxin and heavy-metal testing on select products. This is a genuine strength and one of the clearest advantages STL has over many competitors.
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