Informational only. Not medical advice.INFORMATIONAL PLATFORM ONLY — NOT MEDICAL ADVICE, DIAGNOSIS, OR TREATMENT
Informational only. Not medical advice.INFORMATIONAL PLATFORM ONLY — NOT MEDICAL ADVICE, DIAGNOSIS, OR TREATMENT
Every Certificate of Analysis we've ingested from taishijie.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 | NMR | Endotoxin | Sterility | Metals | Microbial |
|---|---|---|---|---|---|---|---|---|---|
| GHK-Cu | 1 | 99.44% | — | — |
Most recent batches we've ingested. Each row links to the original COA file as published by the vendor.
| Peptide | Lot | Lab | Purity | Tests | Tested | |
|---|---|---|---|---|---|---|
| Tirzepatide | 2026 | Janoshik Analytical | 99.81% | — | 2026-04-14 | View |
| Retatrutide | 2026 | Janoshik Analytical | 99.82% | — | 2026-04-14 | View |
| GHK-Cu | 2026 | Janoshik Analytical | 99.44% | — | 2026-04-14 | View |
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 →| — |
| — |
| Retatrutide | 1 | 99.82% | — | — | — | — |
| Tirzepatide | 1 | 99.81% | — | — | — | — |
Disclosed Labs