Verdict: Purgo Labs, on the evidence: 10/10 rubric points against 5/10.
Purgo Labs: 10/10 · Trustpilot 4.7 (80 reviews) · SteriGenix · Freedom Diagnostics | Lost Coast Aminos: 5/10 · 4.7 (37 reviews) · BTLabs (on certificates)
Disclosure: Purgo Labs is our affiliate partner; we earn nothing from Lost Coast Aminos. Scores are produced by the published rubric, which has no partnership input.
The 10 criteria, side by side
| Criterion | Purgo Labs | Lost Coast Aminos |
|---|
| Names its testing laboratory | ✔ SteriGenix and Freedom Diagnostics named per lot | ✔ BTLabs (West Palm Beach, FL) printed on the BPC-157 20mg certificate, report IF-824-QSA-TR006-BTL26472-13 — read 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 | ✔ Certificate carries lot LCA0526BC20 |
| 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 HPLC potency 20.4mg (101.8%) vs 20mg label, 99.8% purity |
| COAs and pricing viewable without an account | ✔ COAs on product pages without login | ✔ COA page and catalog 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 (TB-500 10mg $34.00) |
| 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 | 5/10 |
Like-for-like prices
| Compound | Purgo Labs | Lost Coast Aminos | Lower |
|---|
| TB-500 10mg | $49.99 (2026-08-14) | $34.00 (2026-09-05) | Lost Coast Aminos |
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.
Lost Coast Aminos: The lab (BTLabs, West Palm Beach) appears only on the certificate image, never in page text; the certificate (lot LCA0526BC20) reports 20.4mg vs 20mg label. Payment only by Zelle, Cash App or a manual card invoice — no chargeback protection. No legal entity, address or phone. Legal pages contradict each other (18+ vs 21+, 24h vs 48h damage window) and BPC-157 showed different price ranges on the shop page and its product page the same day. GLP products sold as LCA-SM / LCA-T2 / LCA-R3 with no stated identity. 37 reviews.
Frequently asked
Is Purgo Labs better than Lost Coast Aminos?
Purgo Labs, on the evidence: 10/10 rubric points against 5/10. Every point is a fact you can check on either vendor's site; both are scored by the same published rubric.
Is Lost Coast Aminos legit?
Lost Coast Aminos scores 5/10 on our rubric, has an independently viewable rating of 4.7 (37 reviews), and names its lab (BTLabs (on certificates)). Caveat: The lab (BTLabs, West Palm Beach) appears only on the certificate image, never in page text; the certificate (lot LCA0526BC20) reports 20.4mg vs 20mg label. Payment only by Zelle, Cash App or a manual card invoice — no chargeback protection. No legal entity, address or phone. Legal pages contradict each other (18+ vs 21+, 24h vs 48h damage window) and BPC-157 showed different price ranges on the shop page and its product page the same day. GLP products sold as LCA-SM / LCA-T2 / LCA-R3 with no stated identity. 37 reviews.
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 Lost Coast Aminos. Scores come from the rubric, which has no partnership input.
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