Informational only. Not medical advice.INFORMATIONAL PLATFORM ONLY — NOT MEDICAL ADVICE, DIAGNOSIS, OR TREATMENT
Every Certificate of Analysis we've ingested from puratekpeptides.com, what each tests for, and what's missing. Sourced back to the original COA URLs — no hosting, no editorial.
Each row is one peptide. Columns show whether at least one COA from this vendor for that peptide tests for that property. Endotoxin and sterility are usually the gap.
| Peptide | COAs | Avg purity | HPLC | MS/MALDI | Endotoxin | Sterility | Metals | Microbial |
|---|---|---|---|---|---|---|---|---|
| GLP-3R | 1 | 99.85% |
Most recent batches we've ingested. Each row links to the original COA file as published by the vendor.
How this is built: we discover every COA URL on the vendor's public testing page, fetch the file, run structured extraction, and persist what each COA actually tests for. Vendor copy isn't a signal — only the COAs themselves.
Full methodology →| — |
| — |
| Melanotan-I | 1 | 99.85% | — | — |
| Melanotan-II | 1 | 99.72% | — | — |
| 99.85% |
| MS |
| 2026-02-19 |
| View |
| Melanotan-II | M210001 | Freedom Diagnostics | 99.72% | MS | 2026-02-19 | View |
| Melanotan-I | Mt10001 | Freedom Diagnostics | 99.85% | MS | 2026-02-19 | View |