Yabang Peptide
GHK-Cu
Finnrick tested 3 samples of GHK-Cu from Yabang Peptide between 6 Jan 2026 and 1 Jul 2026. Test scores average over 5, no score below 4, and at least 2 tests warrant a tentative Finnrick Rating of C (Okay).
Finnrick Rating™
Tentative Rating
Yabang Peptide
GHK-Cu
Tested 3 Samples
Last test 1 Jul 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 Yabang Peptide
Samples are tested in commercial labs
Tests Count
3
Scores
AVGMINMAX
Last
1 Jul 2026
First
6 Jan 2026
| Quantity | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Certificate | Test Score | Label | Tested | Difference | Purity | Endotoxins | Batch ID | Container | Tested At | Sent By |
| 1 Jul 2026 | View | 100mg | 78.4mg | -21.6% | 99.90% | low | (no batch ID) | No label / Silver crimp / Red cap | Lab E | Public | |
| 7 Mar 2026 | View | 50mg | 53.3mg | +6.6% | 99.60% | n/a | 12/2/25 | No Label / Silver Crimp / Blue Cap | Lab G | Public | |
| 6 Jan 2026 | View | 50mg | 45.4mg | -9.2% | 99.70% | n/a | RC-GHK-050-004 | No Label / Silver Crimp / Blue Cap | Lab E | Public | |