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 | Core Peptides: 3/10 · 4.0 (65 reviews, Knoji) · lab not named
Disclosure: Purgo Labs is our affiliate partner; we earn nothing from Core Peptides. Scores are produced by the published rubric, which has no partnership input.
The 10 criteria, side by side
| Criterion | Purgo Labs | Core Peptides |
|---|
| Names its testing laboratory | ✔ SteriGenix and Freedom Diagnostics named per lot | ✘ Not awarded |
| 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 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 5/10mg from $52.00, TB-500 from $78.00) |
| 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) | ✔ No on-site review badge contradicting the independent record; card payment accepted; no regulator action found (checked 6 Sep 2026) |
| Total | 10/10 | 3/10 |
Like-for-like prices
| Compound | Purgo Labs | Core Peptides | Lower |
|---|
| BPC-157 10mg | $44.99 (2026-08-03) | $97.00 (2026-08-02) | Purgo Labs |
| GHK-Cu 50mg | $29.99 (2026-08-03) | $58.00 (2026-08-02) | Purgo Labs |
| MOTS-c 10mg | $49.99 (2026-08-03) | $116.00 (2026-08-02) | Purgo Labs |
| Tesamorelin 10mg | $69.99 (2026-08-03) | $79.00 (2026-08-02) | 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.
Core Peptides: COAs are not yet available across the whole catalog and the testing laboratory is unnamed. Its Trustpilot profile is currently removed; the displayed 4.0/65 rating is Knoji-sourced. Note the separate, unaffiliated corepeptides.ca — verify you are on corepeptides.com.
Frequently asked
Is Purgo Labs better than Core Peptides?
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 Core Peptides legit?
Core Peptides scores 3/10 on our rubric, has an independently viewable rating of 4.0 (65 reviews, Knoji), and does not name its testing laboratory. Caveat: COAs are not yet available across the whole catalog and the testing laboratory is unnamed. Its Trustpilot profile is currently removed; the displayed 4.0/65 rating is Knoji-sourced. Note the separate, unaffiliated corepeptides.ca — verify you are on corepeptides.com.
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 Core Peptides. Scores come from the rubric, which has no partnership input.
Is there a fake Core Peptides website?
Yes. corepeptides.ca (Canada) is a separate company that is not affiliated with corepeptides.com and has a poor reputation. Always verify you are ordering from corepeptides.com. The legitimate Core Peptides website is US-based.
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