Independent side-by-side comparison of InfiniWell 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); InfiniWell carries more community reviews (4800).
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.
InfiniWell 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 | InfiniWell | Zhuoyan Peptides |
|---|---|---|
| Third-party tests | None published | 4 tests, avg purity 99.7% |
| Community rating | 4.3/5 (4800 reviews) | No reviews |
| COA available | No | No |
| Endotoxin tested | No | No |
| FDA warnings | None on record | None on record |
| Production country | United States | Not specified |
| Year established | 2020 | Unknown |
| Substance | InfiniWell | 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 | InfiniWell | Zhuoyan Peptides |
|---|---|---|
| Certificates of analysis | None found on the site | None found on the site |
| Products listed | 48 | 20 |
| Public pricing | Listed on the site | Not stated |
| Payment methods | Credit Card, PayPal | Not stated |
| Ships to | United States, United Kingdom, Canada, Australia, New Zealand, Worldwide | Worldwide |
| Stated origin | United States | China |
Zhuoyan Peptides. InfiniWell 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.
We found no certificates of analysis anywhere on InfiniWell's site, 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.
InfiniWell states it ships to United States, United Kingdom, Canada, Australia, New Zealand, Worldwide, and Zhuoyan Peptides states it ships to Worldwide. Both are read from the vendors' own sites.
Full profiles: InfiniWell, Zhuoyan Peptides.
Full lab-test records: All 4 Zhuoyan Peptides lab tests.
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