Uther
GHK-Cu
Finnrick tested 6 samples of GHK-Cu from Uther between 9 Oct 2025 and 4 Mar 2026. Test scores average over 5, no score below 4, and at least 6 tests warrant a confident Finnrick Rating of C (Okay).
Finnrick Rating™
Uther
GHK-Cu
Tested 6 Samples
Last test 4 Mar 2026
Take Action
Researcher
Request Full Data Access to the Finnrick database of peptide tests.
Free peptide testing
Mail in a sample (US only) to get confidence for the specific vials you have, and contribute to identifying unsafe supply chains, so other people can avoid risky and costly mistakes.
Other GHK-Cu tests from top-rated vendors:
All GHK-Cu tests from Uther
Samples are tested in commercial labs
Tests Count
6
Scores
AVGMINMAX
Last
4 Mar 2026
First
9 Oct 2025
| Quantity | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Certificate | Test Score | Label | Batch | Tested | Difference | Purity | Batch ID | Container | Tested At | Sent By |
| 4 Mar 2026 | View | 50mg | (no batch claim) | 27.7mg | -44.6% | 99.70% | (no batch ID) | No Label / Silver Crimp / White Cap | Lab G | Public | |
| 26 Jan 2026 | View | 100mg | 121.4mg | 121mg | -0.4% | 99.90% | HK100-1205 | No Label / Green Crimp / Clear Purple Cap | Lab E | Public | |
| 6 Nov 2025 | View | 100mg | (no batch claim) | 123mg | +23.0% | 99.95% | HK1000818 | White Label / Red Crimp / Clear Blue Cap | Lab E | Public | |
| 9 Oct 2025 | View | 100mg | (no batch claim) | 138mg | +38.0% | 99.95% | (no batch ID) | No Label / Blue Crimp / Blue Cap | Lab E | Public | |
| 9 Oct 2025 | View | 50mg | (no batch claim) | 53.5mg | +7.0% | 99.94% | HK500802 | White Label / Blue Crimp / Clear Cap | Lab E | Vendor | |
| 9 Oct 2025 | View | 50mg | (no batch claim) | 53.5mg | +7.0% | 99.95% | HK500802 | White Label / Blue Crimp / Clear Cap | Lab E | Vendor | |