Royal Peptides
Tirzepatide
Finnrick tested 10 samples of Tirzepatide (GLP-1 and GIP agonist) from Royal Peptides between 16 Mar 2025 and 3 Mar 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™
Royal Peptides
Tirzepatide
Tested 10 Samples
Last test 3 Mar 2026
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 Royal Peptides
Samples are tested in commercial labs
Tests Count
10
Scores
AVGMINMAX
Last
3 Mar 2026
First
16 Mar 2025
| Quantity | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Certificate | Test Score | Label | Tested | Difference | Purity | Batch ID | Container | Tested At | Sent By |
| 3 Mar 2026 | View | 10mg | 9.8mg | -2.0% | 99.70% | Dec2,2025 | No Label / Silver Crimp / Yellow Cap | Lab G | Public | |
| 29 Dec 2025 | View | 100mg | 104mg | +4.0% | 99.95% | (no batch ID) | No Label / Silver Crimp / White Cap | Lab E | Public | |
| 5 Aug 2025 | View | 10mg | 9.35mg | -6.5% | 99.78% | (no batch ID) | No Label / Silver Crimp / Yellow Cap | Lab E | Public | |
| 5 Aug 2025 | View | 30mg | 32mg | +6.7% | 99.78% | (no batch ID) | White Label / Silver Crimp / Violet Cap | Lab E | Public | |
| 25 Mar 2025 | View | 10mg | 10.93mg | +9.3% | 99.80% | (no batch ID) | No Label / Silver Crimp / Clear Green Cap | Lab C | Finnrick | |
| 25 Mar 2025 | View | 10mg | 11.01mg | +10.1% | 99.89% | (no batch ID) | No Label / Silver Crimp / Clear Green Cap | Lab C | Finnrick | |
| 25 Mar 2025 | View | 10mg | 12.63mg | +26.3% | 99.86% | (no batch ID) | No Label / Silver Crimp / Clear Green Cap | Lab C | Finnrick | |
| 16 Mar 2025 | View | 10mg | 11.14mg | +11.4% | 99.04% | (no batch ID) | No Label / Silver Crimp / Clear Green Cap | Lab A | Finnrick | |
| 16 Mar 2025 | View | 10mg | 11.13mg | +11.3% | 99.56% | (no batch ID) | No Label / Silver Crimp / Clear Green Cap | Lab A | Finnrick | |
| 16 Mar 2025 | View | 10mg | 11.01mg | +10.1% | 99.33% | (no batch ID) | No Label / Silver Crimp / Clear Green Cap | Lab A | Finnrick | |