Independent side-by-side comparison of Modern Aminos and Purity Peptides — third-party lab grades, tested purity, COA availability, FDA warnings, and community ratings.
Bottom line: Modern Aminos holds the stronger independent lab grade (E vs ungraded); Modern Aminos has more published third-party tests (1 vs 0); Modern Aminos carries more community reviews (380).
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.
Modern Aminos: 1 independent Janoshik assay, median measured purity 99.6%, most recent 2024-03-14. Purity Peptides has no independent Janoshik assays on file.
| Attribute | Modern Aminos | Purity Peptides |
|---|---|---|
| Independent lab grade | E | Not graded |
| Third-party tests | 1 test, avg purity 99.6% | None published |
| Community rating | 4.3/5 (380 reviews) | 4.5/5 (210 reviews) |
| COA available | Yes | Yes |
| Endotoxin tested | No | No |
| FDA warnings | None on record | None on record |
| Production country | Not specified | North America |
| Year established | 2020 | 2022 |
| Substance | Modern Aminos | Purity Peptides |
|---|---|---|
| IGF Lr3 1MG | 99.58% (1 assay, latest 2024-03-14) | Not tested |
| Checked | Modern Aminos | Purity Peptides |
|---|---|---|
| Certificates of analysis | Not stated | 54 published on the site |
| Ships to | Not stated | United States, Canada, Worldwide |
| Research-use-only notice | Not stated | Published |
Modern Aminos. Modern Aminos: 1 independent Janoshik assay, median measured purity 99.6%, most recent 2024-03-14. Purity Peptides has no independent Janoshik assays on file. These are third-party Janoshik assays published against the vendor, not the vendor's own certificates.
Modern Aminos states that COAs are available, and Purity Peptides publishes 54 certificates of analysis on its own site. A published COA is the vendor's own document; the assay figures elsewhere on this page are independent of it.
Modern Aminos does not state a shipping region, and Purity Peptides states it ships to United States, Canada, Worldwide. Both are read from the vendors' own sites.
Full profiles: Modern Aminos, Purity Peptides.
Full lab-test records: All 1 Modern Aminos lab test.
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