The 10 criteria, with the evidence
CriterionPurgo LabsChameleon Peptides
Named lab
Purgo LabsSteriGenix and Freedom Diagnostics named per lot
Chameleon PeptidesJanoshik Analytical (ISO 17025) and Vanguard named
Lab-hosted COAs
Purgo LabsVerify-at-lab links to sterigenixanalytical.com / freedomdiagnosticstesting.com
Chameleon PeptidesCOA ledger cites Janoshik reference IDs checkable at the lab (e.g. report #194142 on verify.janoshik.com)
Per-lot COAs
Purgo LabsLot numbers (e.g. PL-BPC-05) with test dates per batch
Chameleon PeptidesBatch ledger: 87 batches across 44 products, matched to vial batch numbers (e.g. BPC-157 batch B002)
Net content
Purgo LabsMeasured net peptide published per lot (e.g. BPC-157 lot PL-BPC-05: 11.16mg vs 10mg label)
Chameleon PeptidesJanoshik report #194142 (BPC-157 10mg, batch B002) states 11.56mg measured vs 10mg label, 99.557% purity — read on verify.janoshik.com 6 Sep 2026
Ungated
Purgo LabsCOAs on product pages without login
Chameleon PeptidesCOA ledger and sized pricing viewable without an account
Review base
Purgo Labs4.7 / 88 on Trustpilot (re-read 18 Sept 2026; was 4.7 / 80 on Trustpilot)
Chameleon Peptides5.0 / 546 on Trustpilot (re-read 24 Sept 2026; was 5.0 / 521 on Trustpilot)
Consistent claims
Purgo LabsNo contradictions found across site claims (checked Aug 2026)
Chameleon PeptidesNo contradictions found across site claims (checked Aug 2026)
Sized pricing
Purgo LabsProduct pages state vial size with price (e.g. BPC-157 10mg at $44.99; 24 dated size+price readings on record)
Chameleon PeptidesSizes stated with prices on all products
Entity + address
Purgo LabsPurgoLabs LLC (Arizona) · 10105 E Via Linda St Bld 103, Scottsdale, AZ — on-site (6 Sep 2026)
Chameleon PeptidesOrigin Sourcing Group LLC dba Chameleon Peptides · 1731 Howe Ave #301, Sacramento, CA 95825 — homepage footer (6 Sep 2026)
Clean record
Purgo LabsNo on-site review badge contradicting the independent record; card payment accepted; no regulator action found (checked 6 Sep 2026)
Chameleon PeptidesNo on-site review badge contradicting the independent record; card payment accepted; no regulator action found (checked 6 Sep 2026)
Total10/1010/10
Purgo Labs earns, Chameleon Peptides doesn't
None — Chameleon Peptides matches every criterion Purgo Labs earns.
Chameleon Peptides earns, Purgo Labs doesn't
None — Purgo Labs matches every criterion Chameleon Peptides earns.
Like-for-like prices
11 vials we priced at both: Purgo Labs cheaper on 9, Chameleon Peptides on 2. List prices, no codes applied.
| Vial | Purgo Labs | Chameleon Peptides |
|---|---|---|
| AOD-9604 5mg | $39.992026-09-23 | $36.002026-09-23 |
| BPC-157 10mg | $44.992026-08-03 | $53.102026-09-18 |
| CJC-1295/Ipamorelin 10mg | $55.992026-09-23 | $63.902026-09-23 |
| DSIP 10mg | $35.992026-09-23 | $47.702026-09-23 |
| Epithalon 10mg | $23.992026-09-23 | $113.402026-09-23 |
| MT-2 10mg | $29.592026-09-23 | $44.102026-09-23 |
| PT-141 10mg | $23.992026-09-23 | $29.002026-09-23 |
| Retatrutide 10mg | $59.992026-08-03 | $80.102026-08-27 |
| Retatrutide 20mg | $119.992026-08-14 | $128.702026-08-27 |
| Retatrutide 30mg | $159.992026-08-14 | $159.302026-08-27 |
| TB-500 10mg | $49.992026-08-14 | $72.902026-08-27 |
Certificates we opened
Purgo Labs: 1 opened, 0 verifiable at the lab. Chameleon Peptides: 1 opened, 1 verifiable at the lab. Full COA library →
Certificates we opened at Purgo Labs: 1
0 verifiable at the lab1 state measured massmedian fill 111.6% of labellast read 2026-09-06
| Product · lot | Lab | Purity | Measured vs label | Verify |
|---|---|---|---|---|
| BPC-157 10mglot PL-BPC-05 | SteriGenix | — | 11.16 mg111.6% of label | vendor-hosted |
Each row is a certificate we opened and read ourselves; "verify at the lab" goes to the laboratory's own lookup, never a copy we host. Full COA library →
Certificates we opened at Chameleon Peptides: 1
1 verifiable at the lab1 state measured massmedian purity 99.56%median fill 115.6% of labellast read 2026-09-06
| Product · lot | Lab | Purity | Measured vs label | Verify |
|---|---|---|---|---|
| BPC-157 10mglot B002 | Janoshik Analytical#194142 | 99.557% | 11.56 mg115.6% of label | at the lab |
Each row is a certificate we opened and read ourselves; "verify at the lab" goes to the laboratory's own lookup, never a copy we host. Full COA library →