Independent testing verdict Pass
This product matched its label.
Identity confirmed and measured purity of 97.6% met the stated ≥98% claim. Content measured 99.6% of label.
- Identity verified
- Yes
- Measured purity
- 97.6%
- Content accuracy
- 99.6%
- Test recency
- Older result
Mass spectrometry confirmed the labelled compound
Label claimed ≥98%
4.98mg measured against 5mg claimed
Published 20 months ago
Specimen PI-LAB-2025-033 Tested by Chelsea Analytical Group 12 samples tested from this company Purity & Testing score 99/100
Full laboratory evidence Findings table, methodology, chain of custody and the original report
Findings
| Metric | Label claim | Measured | Assessment |
|---|---|---|---|
| Purity (HPLC) | ≥ 98% | 97.6% | Within analytical tolerance |
| Identity (MS) | Semaglutide | Confirmed | Matches label |
| Content | 5 mg | 4.98 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 Chelsea Analytical Group. See our full testing methodology.
- Lot / batch
- L4718-25
- Purchased
- Analysed
- Published
- Laboratory
- Chelsea Analytical Group
- Test type
- Purity & identity
Original laboratory report: PI-LAB-2025-033-report.pdf