Batch report · Janoshik Analytical
Retatrutide 20mg COA — RET-20-V-2604-001
ProPeptide Retatrutide 20mg
ProPeptide Retatrutide 20mg, batch RET-20-V-2604-001. On the Janoshik Analytical reports, testing was ordered on 4 March 2026, the sample was received on 15 April 2026 and analysis was conducted between 21 and 24 April 2026.
Janoshik issued six reports, one per test:
- HPLC purity & content 99.741% · 20.92 mg task 112563 · 21 Apr 2026
- Mass (CHNS) 21.80 mg task 112566 · 22 Apr 2026
- LCMS screening No significant contamination detected task 112567 · 23 Apr 2026
- Heavy metals (As, Cd, Pb, Hg) Not detected task 112569 · 21 Apr 2026
- TFA Not detected task 112564 · 22 Apr 2026
- Endotoxin 1.449 EU/vial task 112565 · 24 Apr 2026
Each report has its own verification key, listed below with a link to the laboratory’s copy.
For in-vitro laboratory research only. Not for human or veterinary use.
Batch facts
- Product
- ProPeptide Retatrutide Pen 40mg (supplier-mapped)
ProPeptide Retatrutide Pen 10mg (supplier-mapped) - Batch
- RET-20-V-2604-001
- Sample (as printed)
- Retatrutide 20mg
- Manufacturer / brand
- ProPeptide
- Strength / format
- 20mg sample
- Laboratory
- Janoshik Analytical (opens in a new tab)
- Testing ordered
- 4 March 2026
- Sample received
- 15 April 2026
- Analysed
- 21–24 April 2026
- Reports
- 6
Verify each report
One row per Janoshik report. “Verify on Janoshik” opens the laboratory’s own copy for that task and key; the key can also be entered at janoshik.com/verification (opens janoshik.com in a new tab).
| Test | Result | Analysed | Task | Verification key | Laboratory copy | |
|---|---|---|---|---|---|---|
| HPLC purity & contentRequested as: Common GLP-1 peptide blind test (Semaglutide, Tirzepatide and Retatrutide) | 99.741% · 20.92 mg | 21 Apr 2026 | #112563 | Verify on Janoshik — HPLC purity & content, task 112563 (opens janoshik.com in a new tab) |  |
|
| Mass (CHNS)Requested as: CHNS Mass Report | 21.80 mg | 22 Apr 2026 | #112566 | Verify on Janoshik — Mass (CHNS), task 112566 (opens janoshik.com in a new tab) |  |
|
| LCMS screeningRequested as: LCMS Screening For Peptide Contamination | No significant contamination detected | 23 Apr 2026 | #112567 | Verify on Janoshik — LCMS screening, task 112567 (opens janoshik.com in a new tab) |  |
|
| Heavy metals (As, Cd, Pb, Hg)Requested as: Heavy Metals Analysis | Not detected | 21 Apr 2026 | #112569 | Verify on Janoshik — Heavy metals (As, Cd, Pb, Hg), task 112569 (opens janoshik.com in a new tab) |  |
|
| TFARequested as: TFA analysis | Not detected | 22 Apr 2026 | #112564 | Verify on Janoshik — TFA, task 112564 (opens janoshik.com in a new tab) |  |
|
| EndotoxinRequested as: Endotoxin Analysis | 1.449 EU/vial | 24 Apr 2026 | #112565 | Verify on Janoshik — Endotoxin, task 112565 (opens janoshik.com in a new tab) |  |
Report comments
Printed in the “Comments” field of the report, quoted as written.
- Task #112563 · HPLC purity & content
The peak with lambda max 201, 209 and 229 nm was not counted among impurities.
- Task #112567 · LCMS screening
LCMS analysis identified the presence of mannitol, disaccharide, retatrutide, and degradation products. LCMS spectra are attached. No significant contamination detected.
Report scans
The report images as published for this batch, shown uncropped. Select a scan to open it at full size.
- HPLC purity & contentTask #112563 · analysed 21 Apr 2026Open full-size scan
- Mass (CHNS)Task #112566 · analysed 22 Apr 2026Open full-size scan
- LCMS screeningTask #112567 · analysed 23 Apr 2026Open full-size scan
- Heavy metals (As, Cd, Pb, Hg)Task #112569 · analysed 21 Apr 2026Open full-size scan
- TFATask #112564 · analysed 22 Apr 2026Open full-size scan
- EndotoxinTask #112565 · analysed 24 Apr 2026Open full-size scan