Independent testing verdict Pass
This product matched its label.
Identity confirmed and measured purity of 95.2% met the stated ≥95% claim. Content measured 97.2% of label.
- Identity verified
- Yes
- Measured purity
- 95.2%
- Content accuracy
- 97.2%
- Test recency
- Current cycle
Mass spectrometry confirmed the labelled compound
Label claimed ≥95%
9.72mg measured against 10mg claimed
Published 13 months ago
Specimen PI-LAB-2025-135 Tested by Cornerstone Analytical 9 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) | ≥ 95% | 95.2% | Meets claim |
| Identity (MS) | Cortagen | Confirmed | Matches label |
| Content | 10 mg | 9.72 mg | Within 5% of label |
Methodology & chain of custody
Reversed-phase HPLC purity analysis with UV detection at 214nm.
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 Cornerstone Analytical. See our full testing methodology.
- Lot / batch
- B6940-25
- Purchased
- Analysed
- Published
- Laboratory
- Cornerstone Analytical
- Test type
- Full panel (purity, identity, content, endotoxin)
Original laboratory report: PI-LAB-2025-135-report.pdf