Independent testing verdict Fail
This product failed independent verification.
Sample failed verification: 69.1% measured purity against a ≥95% claim, with 97.0% of labelled content.
- Identity verified
- No
- Measured purity
- 69.1%
- Content accuracy
- 97%
- Test recency
- Current cycle
The labelled compound was not confirmed
Label claimed ≥95%
9.7mg measured against 10mg claimed
Published 11 months ago
Specimen PI-LAB-2025-114 Tested by Vantage Analytical Labs 9 samples tested from this company Purity & Testing score 9/100
Full laboratory evidence Findings table, methodology, chain of custody and the original report
Findings
| Metric | Label claim | Measured | Assessment |
|---|---|---|---|
| Purity (HPLC) | ≥ 95% | 69.1% | Fails claim |
| Identity (MS) | GHK-Cu | Not confirmed | Identity failure |
| Content | 10 mg | 9.7 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
- A9914-25
- Purchased
- Analysed
- Published
- Laboratory
- Vantage Analytical Labs
- Test type
- Content verification
Testing notes
Result confirmed on a second sample from a separate lot at a second laboratory before publication.
Original laboratory report: PI-LAB-2025-114-report.pdf