Independent testing verdict Pass
This product matched its label.
Identity confirmed and measured purity of 98.3% met the stated ≥98% claim. Content measured 97.7% of label.
- Identity verified
- Yes
- Measured purity
- 98.3%
- Content accuracy
- 97.8%
- Test recency
- Older result
Mass spectrometry confirmed the labelled compound
Label claimed ≥98%
4.89mg measured against 5mg claimed
Published 21 months ago
Specimen PI-LAB-2025-166 Tested by Vantage Analytical Labs 12 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% | 98.3% | Meets claim |
| Identity (MS) | Tirzepatide | Confirmed | Matches label |
| Content | 5 mg | 4.89 mg | Within 5% of label |
Methodology & chain of custody
HPLC-UV purity, ESI-MS identity, and Karl Fischer water content.
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 Vantage Analytical Labs. See our full testing methodology.
- Lot / batch
- R1823-25
- Purchased
- Analysed
- Published
- Laboratory
- Vantage Analytical Labs
- Test type
- Content verification
Original laboratory report: PI-LAB-2025-166-report.pdf