Peptide-S
Tirzepatide
Finnrick tested 11 samples of Tirzepatide (GLP-1 and GIP antagonist) from Peptide-S between 9 Jun 2025 and 25 Jul 2025. Test scores average over 5, no score below 4, and at least 6 tests warrant a confident Finnrick Rating of C (Okay).
Finnrick Rating™
Peptide-S
Tirzepatide
Tested 11 Samples
Last test 25 Jul 2025
Take Action
Researcher
Request Full Data Access to the Finnrick database of peptide tests.
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 Tirzepatide tests from top-rated vendors:
All Tirzepatide tests from Peptide-S
Samples are tested in commercial labs
Tests Count
11
Scores
AVGMINMAX
Last
25 Jul 2025
First
9 Jun 2025
| Quantity | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Certificate | Test Score | Label | Tested | Difference | Purity | Batch ID | Container | Tested At | Sent By |
| 25 Jul 2025 | View | 10mg | 9.960mg | -0.4% | 99.95% | Jun 2, 2025 | No Label / Silver Crimp / Yellow Cap | Lab E | Finnrick | |
| 17 Jul 2025 | View | 20mg | 18.900mg | -5.5% | 99.93% | (no batch ID) | No Label / Silver Crimp / Violet Cap | Lab E | Public | |
| 16 Jul 2025 | View | 10mg | 10.500mg | +5.0% | 99.83% | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 16 Jul 2025 | View | 10mg | 11.250mg | +12.5% | 99.66% | Jun 2, 2025 | No Label / Silver Crimp / Yellow Cap | Lab F | Finnrick | |
| 16 Jul 2025 | View | 10mg | 11.180mg | +11.8% | 99.57% | Jun 2, 2025 | No Label / Silver Crimp / Yellow Cap | Lab F | Finnrick | |
| 8 Jul 2025 | View | 15mg | 16.410mg | +9.4% | 99.02% | (no batch ID) | No Label / Silver Crimp / Blue Cap | Lab A | Public | |
| 29 Jun 2025 | View | 30mg | 40.800mg | +36.0% | 99.66% | (no batch ID) | No Label / Silver Crimp / Pink Cap | Lab E | Public | |
| 20 Jun 2025 | View | 20mg | 19.800mg | -1.0% | 99.71% | (no batch ID) | No Label / Silver Crimp / Purple Cap | Lab E | Public | |
| 11 Jun 2025 | View | 5mg | 4.840mg | -3.2% | 99.85% | (no batch ID) | No Label / Silver Crimp / Blue Cap | Lab E | Public | |
| 11 Jun 2025 | View | 10mg | 15.600mg | +56.0% | 99.93% | (no batch ID) | No Label / Silver Crimp / Yellow Cap | Lab E | Public | |
| 9 Jun 2025 | View | 15mg | 13.600mg | -9.3% | 99.24% | (no batch ID) | No Label / Silver Crimp / Blue Cap | Lab E | Public | |