Independent side-by-side comparison of Arctic Peptide and Healthletic — third-party lab grades, tested purity, COA availability, FDA warnings, and community ratings.
Bottom line: Arctic Peptide has more published third-party tests (1 vs 0); Healthletic carries more community reviews (450).
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.
Arctic Peptide: 1 independent Janoshik assay, median measured purity 99.6%, most recent 2026-02-26. Healthletic has no independent Janoshik assays on file.
| Attribute | Arctic Peptide | Healthletic |
|---|---|---|
| Third-party tests | 1 test, avg purity 99.6% | None published |
| Community rating | 4.2/5 (310 reviews) | 4.1/5 (450 reviews) |
| COA available | Yes | Yes |
| Endotoxin tested | No | No |
| FDA warnings | None on record | None on record |
| Production country | Norway | United States |
| Year established | 2021 | 2021 |
| Substance | Arctic Peptide | Healthletic |
|---|---|---|
| Retatrutide 10 Mg | 99.61% (1 assay, latest 2026-02-26) | Not tested |
| Checked | Arctic Peptide | Healthletic |
|---|---|---|
| Certificates of analysis | Not stated | None found on the site |
| Products listed | Not stated | 20 |
| Public pricing | Not stated | Listed on the site |
| Ships to | Not stated | United States, United Kingdom, Europe, Canada, Australia, New Zealand, Worldwide |
| Stated origin | Not stated | United States |
Arctic Peptide. Arctic Peptide: 1 independent Janoshik assay, median measured purity 99.6%, most recent 2026-02-26. Healthletic has no independent Janoshik assays on file. These are third-party Janoshik assays published against the vendor, not the vendor's own certificates.
Arctic Peptide states that COAs are available, and we found no certificates of analysis anywhere on Healthletic's site. A published COA is the vendor's own document; the assay figures elsewhere on this page are independent of it.
Arctic Peptide does not state a shipping region, and Healthletic states it ships to United States, United Kingdom, Europe, Canada, Australia, New Zealand, Worldwide. Both are read from the vendors' own sites.
Full profiles: Arctic Peptide, Healthletic.
Full lab-test records: All 1 Arctic Peptide lab test.
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