Independent side-by-side comparison of DC Peptide and Purus Peptides — third-party lab grades, tested purity, COA availability, FDA warnings, and community ratings.
Bottom line: Purus Peptides has more published third-party tests (6 vs 2).
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.
DC Peptide: 2 independent Janoshik assays, across 2 substances, median measured purity 99.8%, most recent 2026-04-27. Purus Peptides: 6 independent Janoshik assays, across 6 substances, median measured purity 99.8%, most recent 2026-01-06.
| Attribute | DC Peptide | Purus Peptides |
|---|---|---|
| Third-party tests | 2 tests, avg purity 99.8% | 6 tests, avg purity 99.8% |
| COA available | No | No |
| Endotoxin tested | No | No |
| FDA warnings | None on record | None on record |
| Substance | DC Peptide | Purus Peptides |
|---|---|---|
| Ghk-cu 100mg(CU100) | 99.60% (1 assay, latest 2026-04-27) | Not tested |
| Tirzepatide 120mg(TR120) | 99.91% (1 assay, latest 2026-03-19) | Not tested |
| Nad/mots-c/5amino 100/10/10mg | Not tested | purity not reported (1 assay, latest 2026-01-06) |
| Ghk-cu 50mg | Not tested | 99.84% (1 assay, latest 2025-10-09) |
| Glp-3rt 20mg | Not tested | 99.75% (1 assay, latest 2025-10-09) |
| Glp-2tz 40mg | Not tested | 99.83% (1 assay, latest 2025-10-09) |
| Glp-2tz 20mg | Not tested | 99.75% (1 assay, latest 2025-10-09) |
| Tirzepatide 40mg | Not tested | purity not reported (1 assay) |
| Checked | DC Peptide | Purus Peptides |
|---|---|---|
| Certificates of analysis | None found on the site | 11 published on the site |
| Products listed | 40 | 47 |
| Public pricing | Not stated | Listed on the site |
| Payment methods | Not stated | Bank Transfer, Credit Card, Zelle, Venmo |
| Ships to | Europe, Asia, Worldwide | United States, Worldwide |
| Carriers | Not stated | UPS, USPS |
| Research-use-only notice | Not stated | Published |
| Stated origin | Hong Kong | Not stated |
Purus Peptides. DC Peptide: 2 independent Janoshik assays, across 2 substances, median measured purity 99.8%, most recent 2026-04-27. Purus Peptides: 6 independent Janoshik assays, across 6 substances, median measured purity 99.8%, most recent 2026-01-06. These are third-party Janoshik assays published against the vendor, not the vendor's own certificates.
We found no certificates of analysis anywhere on DC Peptide's site, and Purus Peptides publishes 11 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.
DC Peptide states it ships to Europe, Asia, Worldwide, and Purus Peptides states it ships to United States, Worldwide. Both are read from the vendors' own sites.
Full profiles: DC Peptide, Purus Peptides.
Full lab-test records: All 2 DC Peptide lab tests, All 6 Purus Peptides lab tests.
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