Certificate of Analysis
DOC QC-COA-0109-TBR-20-271-26 · REV 1Triple-tested · Raw material is tested before vialing, the finished vial is tested for sterility, and every lot is released on an independent laboratory certificate.
Test results
| Test | Method | Specification | Result | Verdict |
|---|---|---|---|---|
| Appearance | Visual | White to off-white lyophilized powder | White Lyophilized Powder | PASS |
| Identity | LC-MS | Observed mass conforms to theoretical | Confirmed · GLP RT | PASS |
| Purity | HPLC-UV | ≥ 95% | 99.64% | PASS |
| Net content | LC-MS · gravimetric | Report | 20.55 mg | PASS |
| Endotoxin | LAL, USP <85> | Pass | Pass · ≤ 0.05 EU/mL | PASS |
| Microbial | PCR | No detectable microbial DNA | No detectable microbial DNA | PASS |
| Elemental impurities | ICP-MS (As, Cd, Pb, Hg) | Below limits | Pass · As, Cd, Pb, Hg below limits | PASS |
| Fentanyl screen | Screen | Not detected | No fentanyl detected | PASS |
Source document
Freedom Diagnostics Testing · Independent U.S. laboratory. Reference UsaM2610130123 · sample received Oct 13, 2026 · reported Oct 14, 2026.
The results above are transcribed from the laboratory's certificate for this lot. Atlas RND hosts a copy of that document; the original is the authority, so open it to confirm every figure. To check it against the laboratory's own records, look the reference up at Freedom Diagnostics.
Conclusion. Lot TBR-20-271-26 of Retatrutide 20 mg meets the release specification for every test listed above and is approved for distribution for laboratory research use only. Testing performed by Freedom Diagnostics Testing, an independent U.S. laboratory, independent of Atlas RND.
www.atlasrnd.co/coa/tbr-20-271-26
LAB REFERENCE UsaM2610130123