Independent side-by-side comparison of Cocer Peptides and Hongbai Technology — third-party lab grades, tested purity, COA availability, FDA warnings, and community ratings.
Bottom line: Cocer Peptides has more published third-party tests (37 vs 1).
Every figure below is either measured by an independent laboratory or read from the vendor's own website, and the source is named against it. PeptideAtlas is not affiliated with either vendor.
Cocer Peptides: 37 independent Janoshik assays, across 30 substances, median measured purity 99.6%, most recent 2026-03-27. Hongbai Technology: 1 independent Janoshik assay, median measured purity 99.7%, most recent 2026-04-27.
| Attribute | Cocer Peptides | Hongbai Technology |
|---|---|---|
| Third-party tests | 37 tests, avg purity 99.6% | 1 test, avg purity 99.7% |
| COA available | No | No |
| Endotoxin tested | No | No |
| FDA warnings | None on record | None on record |
| Substance | Cocer Peptides | Hongbai Technology |
|---|---|---|
| Retatrutide 10mg | 99.31% (3 assays, latest 2026-02-05) | Not tested |
| Tirzepatide 30mg | 99.76% (3 assays, latest 2026-01-16) | Not tested |
| Kisspeptin 10mg | 99.62% (2 assays, latest 2026-01-19) | Not tested |
| Epithalon 10mg | 99.34% (2 assays, latest 2026-01-07) | Not tested |
| Reta 20mg | 99.57% (2 assays, latest 2025-10-23) | Not tested |
| Tb 500 Farg 10mg | 99.90% (1 assay, latest 2026-03-27) | Not tested |
| Glow | purity not reported (1 assay, latest 2026-03-27) | Not tested |
| Tb/bp 30/30 | purity not reported (1 assay, latest 2026-03-27) | Not tested |
| Reta10mg | 99.73% (1 assay, latest 2026-03-18) | Not tested |
| Bpc 10mg | 99.79% (1 assay, latest 2026-03-18) | Not tested |
| Motsc 10mg | 99.44% (1 assay, latest 2026-03-18) | Not tested |
| AOD 5mg | 99.08% (1 assay, latest 2026-02-20) | Not tested |
| Checked | Cocer Peptides | Hongbai Technology |
|---|---|---|
| Certificates of analysis | 20 published on the site | None found on the site |
| Products listed | Not stated | 61 |
| Public pricing | Not stated | Listed on the site |
| Payment methods | Cryptocurrency, Credit Card | Cryptocurrency |
| Ships to | Worldwide | Worldwide |
| Carriers | Not stated | DHL, FedEx, UPS, USPS |
| Research-use-only notice | Published | Not stated |
| Stated origin | Hong Kong | Hong Kong |
Cocer Peptides. Cocer Peptides: 37 independent Janoshik assays, across 30 substances, median measured purity 99.6%, most recent 2026-03-27. Hongbai Technology: 1 independent Janoshik assay, median measured purity 99.7%, most recent 2026-04-27. These are third-party Janoshik assays published against the vendor, not the vendor's own certificates.
Cocer Peptides publishes 20 certificates of analysis on its own site, and we found no certificates of analysis anywhere on Hongbai Technology's site. A published COA is the vendor's own document; the assay figures elsewhere on this page are independent of it.
Cocer Peptides states it ships to Worldwide, and Hongbai Technology states it ships to Worldwide. Both are read from the vendors' own sites.
Full profiles: Cocer Peptides, Hongbai Technology.
Full lab-test records: All 37 Cocer Peptides lab tests, All 1 Hongbai Technology lab test.
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