Verdict: Purgo Labs, on the evidence: 10/10 rubric points against 8/10.
Purgo Labs: 10/10 · Trustpilot 4.7 (88 reviews) · SteriGenix · Freedom Diagnostics | Nexaph: 8/10 · 3.9 (73 reviews) · Janoshik Analytical
Disclosure: Purgo Labs is our affiliate partner; we earn nothing from Nexaph. Scores are produced by the published rubric, which has no partnership input.
The 10 criteria, side by side
| Criterion | Purgo Labs | Nexaph |
|---|
| Names its testing laboratory | ✔ SteriGenix and Freedom Diagnostics named per lot | ✔ Janoshik Analytical — test report #163727 linked from the product page (read 19 Sep 2026) |
| Certificates verifiable at the lab, not just the vendor | ✔ Verify-at-lab links to sterigenixanalytical.com / freedomdiagnosticstesting.com | ✔ Report #163727 resolves on verify.janoshik.com with the unique key printed on the vendor certificate — checked 19 Sep 2026 |
| Batch-specific COAs matched to lots | ✔ Lot numbers (e.g. PL-BPC-05) with test dates per batch | ✔ Batch BPC1005082026-22 on the report; testing.nexaph.com indexes certificates by batch |
| 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) | ✔ Four vials measured: 12.09 / 12.25 / 12.18 / 11.95mg on a 10mg label; purity 99.934 / 99.894 / 99.884 / 99.928% (analysis 25 May 2026) |
| COAs and pricing viewable without an account | ✔ COAs on product pages without login | ✔ Product page shows price ($152 kit, $178 list) and links the lab report without an account (19 Sep 2026); some listings display a 'login to view' prompt |
| Independent review base (50+ on an external platform) | ✔ 4.7 / 88 on Trustpilot (re-read 18 Sept 2026; was 4.7 / 80 on Trustpilot) | ✔ 3.9 / 73 on active Trustpilot profile (read directly 19 Sep 2026) |
| 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, sold as 10-vial kits (BPC-157 10mg ×10 $152; TB-500 10mg ×10 $161; NAD+ 500mg ×10 $228 — 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 | 8/10 |
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.
Nexaph: Sells in 10-vial kits only — the BPC-157 10mg kit is $152 (list $178), so the minimum spend is high and our single-vial price index cannot place it. The legal entity is printed as Shanghai Nexa Pharma Co with no street address anywhere on the site. Its shipping policy page says US-only and fulfilment within 2 business days while the homepage says US and UK shipping in 5–7 business days. Some listings show a 'please login to view' prompt though prices were readable logged out on 19 Sep 2026. Crypto payment earns a 5% discount; no returns accepted.
Frequently asked
Is Purgo Labs better than Nexaph?
Purgo Labs, on the evidence: 10/10 rubric points against 8/10. Every point is a fact you can check on either vendor's site; both are scored by the same published rubric.
Is Nexaph legit?
Nexaph scores 8/10 on our rubric, has an independently viewable rating of 3.9 (73 reviews), and names its lab (Janoshik Analytical). Caveat: Sells in 10-vial kits only — the BPC-157 10mg kit is $152 (list $178), so the minimum spend is high and our single-vial price index cannot place it. The legal entity is printed as Shanghai Nexa Pharma Co with no street address anywhere on the site. Its shipping policy page says US-only and fulfilment within 2 business days while the homepage says US and UK shipping in 5–7 business days. Some listings show a 'please login to view' prompt though prices were readable logged out on 19 Sep 2026. Crypto payment earns a 5% discount; no returns accepted.
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 Nexaph. Scores come from the rubric, which has no partnership input.
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