Independent side-by-side comparison of CanLab Sciences and Zhuoyan Peptides — third-party lab grades, tested purity, COA availability, FDA warnings, and community ratings.
Bottom line: Zhuoyan Peptides has more published third-party tests (4 vs 0); CanLab Sciences carries more community reviews (456).
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.
CanLab Sciences has no independent Janoshik assays on file. Zhuoyan Peptides: 4 independent Janoshik assays, across 4 substances, median measured purity 99.7%, most recent 2026-03-24.
| Attribute | CanLab Sciences | Zhuoyan Peptides |
|---|---|---|
| Third-party tests | None published | 4 tests, avg purity 99.7% |
| Community rating | 4.5/5 (456 reviews) | No reviews |
| COA available | Yes | No |
| Endotoxin tested | No | No |
| FDA warnings | None on record | None on record |
| Year established | 2019 | Unknown |
| Substance | CanLab Sciences | Zhuoyan Peptides |
|---|---|---|
| Bb10(bpc 5mg + TB 5mg) | Not tested | purity not reported (1 assay, latest 2026-03-24) |
| Ss-31 10mg | Not tested | 99.69% (1 assay, latest 2025-06-16) |
| Epitalon 10mg | Not tested | 99.54% (1 assay, latest 2025-06-16) |
| Tirzepatide 10mg | Not tested | 99.80% (1 assay, latest 2025-03-06) |
| Checked | CanLab Sciences | Zhuoyan Peptides |
|---|---|---|
| Certificates of analysis | Not stated | None found on the site |
| Products listed | Not stated | 20 |
| Ships to | Not stated | Worldwide |
| Stated origin | Not stated | China |
Zhuoyan Peptides. CanLab Sciences has no independent Janoshik assays on file. Zhuoyan Peptides: 4 independent Janoshik assays, across 4 substances, median measured purity 99.7%, most recent 2026-03-24. These are third-party Janoshik assays published against the vendor, not the vendor's own certificates.
CanLab Sciences states that COAs are available, and we found no certificates of analysis anywhere on Zhuoyan Peptides' site. A published COA is the vendor's own document; the assay figures elsewhere on this page are independent of it.
CanLab Sciences does not state a shipping region, and Zhuoyan Peptides states it ships to Worldwide. Both are read from the vendors' own sites.
Full profiles: CanLab Sciences, Zhuoyan Peptides.
Full lab-test records: All 4 Zhuoyan Peptides lab tests.
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