Independent testing verdict Pass
This product matched its label.
Identity confirmed and measured purity of 97.9% met the stated ≥98% claim. Content measured 98.0% of label.
- Identity verified
- Yes
- Measured purity
- 97.9%
- Content accuracy
- 98%
- Test recency
- Current cycle
Mass spectrometry confirmed the labelled compound
Label claimed ≥98%
4.9mg measured against 5mg claimed
Published 6 months ago
Specimen PI-LAB-2026-028 Tested by Axiom Mass Spec Services 16 samples tested from this company Purity & Testing score 98/100
Full laboratory evidence Findings table, methodology, chain of custody and the original report
Findings
| Metric | Label claim | Measured | Assessment |
|---|---|---|---|
| Purity (HPLC) | ≥ 98% | 97.9% | Within analytical tolerance |
| Identity (MS) | Tirzepatide | Confirmed | Matches label |
| Content | 5 mg | 4.9 mg | Within 5% of label |
Methodology & chain of custody
LC-MS/MS identity confirmation with quantitative amino acid analysis.
The sample was purchased anonymously through standard retail checkout and shipped to an unaffiliated address, then logged, photographed, and forwarded under chain-of-custody documentation to Axiom Mass Spec Services. See our full testing methodology.
- Lot / batch
- R1428-26
- Purchased
- Analysed
- Published
- Laboratory
- Axiom Mass Spec Services
- Test type
- Content verification
Original laboratory report: PI-LAB-2026-028-report.pdf