Independent testing verdict Pass
This product matched its label.
Identity confirmed and measured purity of 98.3% met the stated ≥99% claim. Content measured 99.9% of label.
- Identity verified
- Yes
- Measured purity
- 98.3%
- Content accuracy
- 99.9%
- Test recency
- Current cycle
Mass spectrometry confirmed the labelled compound
Label claimed ≥99%
9.99mg measured against 10mg claimed
Published 6 months ago
Specimen PI-LAB-2026-061 Tested by Axiom Mass Spec Services 17 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% | 98.3% | Within analytical tolerance |
| Identity (MS) | KPV | Confirmed | Matches label |
| Content | 10 mg | 9.99 mg | Within 5% of label |
Methodology & chain of custody
Quantitative amino acid analysis against certified reference standard.
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
- A4761-26
- Purchased
- Analysed
- Published
- Laboratory
- Axiom Mass Spec Services
- Test type
- Full panel (purity, identity, content, endotoxin)
Original laboratory report: PI-LAB-2026-061-report.pdf