ZLZ Peptide
GHK-Cu
Finnrick tested 13 samples of GHK-Cu from ZLZ Peptide between 4 Aug 2025 and 28 Apr 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™
ZLZ Peptide
GHK-Cu
Tested 13 Samples
Last test 28 Apr 2026
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Samples are tested in commercial labs
Tests Count
13
Scores
AVGMINMAX
Last
28 Apr 2026
First
4 Aug 2025
| Quantity | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Certificate | Test Score | Label | Tested | Difference | Purity | Batch ID | Container | Tested At | Sent By |
| 28 Apr 2026 | View | 100mg | 102.1mg | +2.1% | 99.60% | 03/12/2026 | (no data) | Lab E | Public | |
| 23 Apr 2026 | View | 100mg | 121mg | +21.0% | 99.90% | 2026-09-03 | White Label / Silver Crimp / Clear Cap | Lab E | Public | |
| 21 Mar 2026 | View | 100mg | 72.5mg | -27.5% | 99.70% | (no batch ID) | No Label / Silver Crimp / Violet Cap | Lab G | Public | |
| 6 Mar 2026 | View | 100mg | 90.7mg | -9.3% | 99.90% | 02 Dec 2025 | No Label / Silver Crimp / Violet Cap | Lab E | Public | |
| 19 Jan 2026 | View | 50mg | 51mg | +2.0% | 99.95% | (no batch ID) | Clear Label / Silver Crimp / Blue Cap | Lab E | Public | |
| 6 Jan 2026 | View | 50mg | 52.2mg | +4.4% | 99.00% | 09012025 | White Label / Silver Crimp / White Cap | Lab E | Public | |
| 29 Dec 2025 | View | 50mg | 56.6mg | +13.2% | 99.81% | (no batch ID) | No Label / Copper Crimp / Clear Cap | Lab E | Public | |
| 18 Nov 2025 | View | 50mg | 78.6mg | +57.2% | 99.93% | (no batch ID) | No Label / Silver Crimp / Violet Cap | Lab E | Public | |
| 17 Nov 2025 | View | 50mg | 48.8mg | -2.4% | 99.95% | (no batch ID) | No Label / Copper Crimp / Clear Cap | Lab E | Public | |
| 9 Oct 2025 | View | 50mg | 53.5mg | +7.0% | 99.95% | (no batch ID) | No Label / Silver Crimp / White Cap | Lab E | Public | |
| 9 Oct 2025 | View | 50mg | 56.6mg | +13.2% | 99.95% | (no batch ID) | Pink Label / Copper Crimp / Clear Cap | Lab E | Public | |
| 3 Oct 2025 | View | 100mg | 111mg | +11.0% | 99.95% | (no batch ID) | No Label / Silver Crimp / Blue Cap | Lab E | Public | |
| 4 Aug 2025 | View | 100mg | 89.8mg | -10.2% | 99.92% | (no batch ID) | No Label / Silver Crimp / Blue Cap | Lab E | Public | |