
ZLZ Peptide
GHK-Cu
Finnrick tested 4 samples of GHK-Cu from ZLZ Peptide between 4 Aug 2025 and 9 Oct 2025. Test scores average over 6, no score below 5, and at least 2 tests warrant a tentative Finnrick Rating of B (Good).
Finnrick Rating™
Tentative Rating
ZLZ Peptide
GHK-Cu
Tested 4 Samples
Last test 9 Oct 2025
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Samples are tested in commercial labs
Tests Count
4
Scores
AVGMINMAX
Last
9 Oct 2025
First
4 Aug 2025
| Quantity | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Certificate | Test Score | Label | Tested | Difference | Purity | Batch ID | Container | Tested At | Sent By |
| 9 Oct 2025 | View | 50mg | 53.500mg | +7.0% | 99.95% | (no batch ID) | No Label / Silver Crimp / White Cap | Lab E | Public | |
| 9 Oct 2025 | View | 50mg | 56.600mg | +13.2% | 99.95% | (no batch ID) | Pink Label / Copper Crimp / Clear Cap | Lab E | Public | |
| 3 Oct 2025 | View | 100mg | 111.000mg | +11.0% | 99.95% | (no batch ID) | No Label / Silver Crimp / Blue Cap | Lab E | Public | |
| 4 Aug 2025 | View | 100mg | 89.800mg | -10.2% | 99.92% | (no batch ID) | No Label / Silver Crimp / Blue Cap | Lab E | Public | |