ZePeptide
GHK-Cu
Finnrick tested 10 samples of GHK-Cu from ZePeptide between 17 Dec 2025 and 9 Aug 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™
ZePeptide
GHK-Cu
Tested 10 Samples
Last test 9 Aug 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 ZePeptide
Samples are tested in commercial labs
Tests Count
10
Scores
AVGMINMAX
Last
9 Aug 2026
First
17 Dec 2025
| Quantity | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Certificate | Test Score | Label | Tested | Difference | Purity | Batch ID | Container | Tested At | Sent By |
| 9 Aug 2026 | View | 100mg | 100.6mg | +0.6% | 99.70% | CU100/260314 | No label / Silver crimp / Violet cap | Lab G | Public | |
| 3 Aug 2026 | View | 100mg | 36.5mg | -63.5% | 99.90% | GU100-03242026 | No label / Silver crimp / Blue cap | Lab E | Public | |
| 13 Jul 2026 | View | 50mg | 42.9mg | -14.2% | 99.90% | CU50/260329 | No label / Silver crimp / Violet cap | Lab E | Public | |
| 10 Jul 2026 | View | 100mg | 84.9mg | -15.1% | 99.70% | 042026 | Blue label / Silver crimp / Blue cap | Lab G | Public | |
| 13 May 2026 | View | 100mg | 105mg | +5.0% | 99.30% | TNY-CU100100-030426 | No label / Silver crimp / Clear cap | Lab E | Public | |
| 28 Apr 2026 | View | 50mg | 75.4mg | +50.8% | 99.90% | (no batch ID) | No Label / Silver Crimp / Violet Cap | Lab E | Public | |
| 15 Feb 2026 | View | 50mg | 44.4mg | -11.2% | 99.70% | (no batch ID) | No Label / Silver Crimp / Violet Cap | Lab G | Public | |
| 4 Feb 2026 | View | 100mg | 85.9mg | -14.1% | 99.90% | (no batch ID) | No Label / Silver Crimp / Violet Cap | Lab E | Public | |
| 26 Jan 2026 | View | 100mg | 91.3mg | -8.7% | 99.90% | (no batch ID) | White Label / Silver Crimp / Purple Cap | Lab E | Public | |
| 17 Dec 2025 | View | 100mg | 105mg | +5.0% | 99.95% | CU100 | No Label / Silver Crimp / Violet Cap | Lab E | Public | |