HK Peptides
GHK-Cu
Finnrick tested 10 samples of GHK-Cu from HK Peptides between 16 Jul 2025 and 6 Dec 2025. Test scores average below 4 or some scores below 3, and at least 6 tests, warrant a confident Finnrick Rating of E (Bad).
Finnrick Rating™
HK Peptides
GHK-Cu
Tested 10 Samples
Last test 6 Dec 2025
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 HK Peptides
Samples are tested in commercial labs
Tests Count
10
Scores
AVGMINMAX
Last
6 Dec 2025
First
16 Jul 2025
| Quantity | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Certificate | Test Score | Label | Tested | Difference | Purity | Endotoxins | Batch ID | Container | Tested At | Sent By |
| 6 Dec 2025 | View | 50mg | 58.7mg | +17.4% | 99.84% | n/a | (no batch ID) | Gray Label / Copper Crimp / Clear Cap | Lab E | Public | |
| 17 Nov 2025 | View | 50mg | 53.8mg | +7.6% | 99.95% | n/a | (no batch ID) | No Label / Copper Crimp / Clear Cap | Lab E | Public | |
| 6 Nov 2025 | View | 50mg | ⚠️ Sample does not contain GHK-Cu | n/a | August Blue Cap | No Label / Silver Crimp / Blue Cap | Lab E | Public | |||
| 23 Oct 2025 | View | 50mg | 48.8mg | -2.4% | 99.52% | n/a | (no batch ID) | White Label / Silver Crimp / Clear Teal Cap | Lab E | Public | |
| 21 Oct 2025 | View | 50mg | 53.6mg | +7.2% | 99.95% | n/a | (no batch ID) | No Label / Silver Crimp / White Cap | Lab E | Public | |
| 18 Sep 2025 | View | 50mg | 55.4mg | +10.8% | 99.80% | n/a | (no batch ID) | No Label / Copper Crimp / Clear Cap | Lab E | Public | |
| 4 Aug 2025 | View | 50mg | 69.77mg | +39.5% | 99.99% | n/a | (no batch ID) | No Label / Copper Crimp / Clear Cap | Lab D | Finnrick | |
| 4 Aug 2025 | View | 50mg | 58.4mg | +16.8% | 99.87% | n/a | (no batch ID) | No Label / Copper Crimp / Clear Cap | Lab E | Finnrick | |
| 4 Aug 2025 | View | 50mg | 56.9mg | +13.8% | 99.79% | below LOQ | (no batch ID) | No Label / Copper Crimp / Clear Cap | Lab E | Finnrick | |
| 16 Jul 2025 | View | 100mg | 83.76mg | -16.2% | 99.89% | n/a | (no batch ID) | White Label / Silver Crimp / Blue Cap | Lab F | Public | |