Oupeptide
GHK-Cu
Finnrick tested 13 samples of GHK-Cu from Oupeptide between 14 Aug 2025 and 26 Jun 2026. Test scores average over 6, no score below 5, and at least 6 tests warrant a confident Finnrick Rating of B (Good).
Finnrick Rating™
Oupeptide
GHK-Cu
Tested 13 Samples
Last test 26 Jun 2026
Take Action
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 Oupeptide
Samples are tested in commercial labs
Tests Count
13
Scores
AVGMINMAX
Last
26 Jun 2026
First
14 Aug 2025
| Quantity | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Certificate | Test Score | Label | Tested | Difference | Purity | Batch ID | Container | Tested At | Sent By |
| 26 Jun 2026 | View | 100mg | 96.5mg | -3.5% | 99.60% | JK2915 | Teal label / Silver crimp / Clear Blue cap | Lab G | Public | |
| 15 Jun 2026 | View | 100mg | 88.1mg | -11.9% | 99.90% | 03182026 | No label / Silver crimp / Violet cap | Lab E | Public | |
| 12 Jun 2026 | View | 100mg | 82.7mg | -17.3% | 99.60% | JK2945 | No label / Gold crimp / Clear cap | Lab G | Public | |
| 28 Apr 2026 | View | 100mg | 81mg | -19.0% | 99.90% | (no batch ID) | No Label / Silver Crimp / Violet Cap | Lab E | Public | |
| 12 Mar 2026 | View | 100mg | 82.8mg | -17.2% | 99.90% | JKA100 | White Label / Silver Crimp / Violet Cap | Lab E | Public | |
| 18 Feb 2026 | View | 50mg | 50.3mg | +0.6% | 99.90% | (no batch ID) | No Label / Silver Crimp / White Cap | Lab E | Public | |
| 9 Feb 2026 | View | 100mg | 113mg | +13.0% | 99.90% | (no batch ID) | No Label / Silver Crimp / Clear Cap | Lab E | Public | |
| 26 Jan 2026 | View | 50mg | 53.5mg | +7.0% | 99.90% | (no batch ID) | Silver Label / Silver Crimp / White Cap | Lab E | Public | |
| 19 Jan 2026 | View | 100mg | 90.1mg | -9.9% | 99.91% | (no batch ID) | White Label / Silver Crimp / Blue Cap | Lab E | Public | |
| 6 Jan 2026 | View | 100mg | 96.1mg | -3.9% | 99.63% | (no batch ID) | No Label / Silver Crimp / Clear Cap | Lab E | Public | |
| 10 Sep 2025 | View | 50mg | 53.4mg | +6.8% | 99.95% | (no batch ID) | No Label / Copper Crimp / Clear Cap | Lab E | Public | |
| 21 Aug 2025 | View | 100mg | 115mg | +15.0% | 99.94% | (no batch ID) | No Label / Silver Crimp / Clear Cap | Lab E | Public | |
| 14 Aug 2025 | View | 50mg | 46mg | -8.0% | 99.41% | 6/2025 | White Label / Copper Crimp / Clear Cap | Lab F | Public | |