Independent testing verdict Pass
This product matched its label.
Identity confirmed and measured purity of 98.1% met the stated ≥99% claim. Content measured 97.7% of label.
- Identity verified
- Yes
- Measured purity
- 98.1%
- Content accuracy
- 97.8%
- Test recency
- Older result
Mass spectrometry confirmed the labelled compound
Label claimed ≥99%
4.89mg measured against 5mg claimed
Published 14 months ago
Specimen PI-LAB-2025-089 Tested by Axiom Mass Spec Services 14 samples tested from this company Purity & Testing score 91/100
Full laboratory evidence Findings table, methodology, chain of custody and the original report
Findings
| Metric | Label claim | Measured | Assessment |
|---|---|---|---|
| Purity (HPLC) | ≥ 99% | 98.1% | Within analytical tolerance |
| Identity (MS) | Tirzepatide | Confirmed | Matches label |
| Content | 5 mg | 4.89 mg | Within 5% of label |
Methodology & chain of custody
RP-HPLC purity with electrospray ionisation mass confirmation.
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
- C2524-25
- Purchased
- Analysed
- Published
- Laboratory
- Axiom Mass Spec Services
- Test type
- Purity & identity
Original laboratory report: PI-LAB-2025-089-report.pdf