Independent side-by-side comparison of Inno Peptides and Mei Peptide — third-party lab grades, tested purity, COA availability, FDA warnings, and community ratings.
Bottom line: Mei Peptide shows higher average tested purity (99.2% vs 98.9%); Inno Peptides has more published third-party tests (14 vs 8).
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.
Inno Peptides: 14 independent Janoshik assays, across 14 substances, median measured purity 99.6%, most recent 2026-01-22. Mei Peptide: 8 independent Janoshik assays, across 8 substances, median measured purity 99.1%, most recent 2025-11-20.
| Attribute | Inno Peptides | Mei Peptide |
|---|---|---|
| Third-party tests | 14 tests, avg purity 98.9% | 8 tests, avg purity 99.2% |
| COA available | No | No |
| Endotoxin tested | No | No |
| FDA warnings | None on record | None on record |
| Substance | Inno Peptides | Mei Peptide |
|---|---|---|
| Retatrutide 10mg | 99.63% (1 assay, latest 2026-01-22) | 99.66% (1 assay, latest 2025-07-19) |
| Retatrutide 20mg | 99.82% (1 assay, latest 2026-01-22) | Not tested |
| Bpc157 5mg | 99.72% (1 assay, latest 2026-01-02) | Not tested |
| Mots-c 40mg | 99.85% (1 assay, latest 2025-12-31) | Not tested |
| Mots-c 10mg | 99.72% (1 assay, latest 2025-12-31) | Not tested |
| Tb500 10mg | 99.54% (1 assay, latest 2025-12-31) | Not tested |
| Tb500 5mg | 99.62% (1 assay, latest 2025-12-31) | Not tested |
| Tirzepatide 100mg | 99.90% (1 assay, latest 2025-12-31) | Not tested |
| Tirzepatide 60mg | 99.95% (1 assay, latest 2025-12-31) | Not tested |
| Survodutide 10mg | 99.45% (1 assay, latest 2025-09-01) | Not tested |
| Ace-031 1mg | 99.24% (1 assay, latest 2025-09-01) | Not tested |
| HGH 15iu | 92.10% (1 assay, latest 2025-09-01) | Not tested |
| Checked | Inno Peptides | Mei Peptide |
|---|---|---|
| Certificates of analysis | None found on the site | Not stated |
| Products listed | 6 | Not stated |
| Payment methods | Cryptocurrency, Bank Transfer, Credit Card, PayPal | Not stated |
| Ships to | United States, Europe, Worldwide | Not stated |
| Carriers | DHL, FedEx, UPS | Not stated |
| Research-use-only notice | Published | Not stated |
| Stated origin | Hong Kong | Not stated |
Inno Peptides. Inno Peptides: 14 independent Janoshik assays, across 14 substances, median measured purity 99.6%, most recent 2026-01-22. Mei Peptide: 8 independent Janoshik assays, across 8 substances, median measured purity 99.1%, most recent 2025-11-20. These are third-party Janoshik assays published against the vendor, not the vendor's own certificates.
Retatrutide 10mg has been independently assayed for both. Inno Peptides measured a median 99.63% across 1 assay; Mei Peptide measured 99.66% across 1. Purity reflects the lots actually tested, not every batch either vendor sells.
We found no certificates of analysis anywhere on Inno Peptides' site, and we have not read Mei Peptide's site. A published COA is the vendor's own document; the assay figures elsewhere on this page are independent of it.
Inno Peptides states it ships to United States, Europe, Worldwide, and Mei Peptide does not state one. Both are read from the vendors' own sites.
Full profiles: Inno Peptides, Mei Peptide.
Full lab-test records: All 14 Inno Peptides lab tests, All 8 Mei Peptide lab tests.
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