
Welon Peptide Solutions
Retatrutide
Finnrick tested 5 samples of Retatrutide (GLP-1, GIP, and GCGR agonist) from Welon Peptide Solutions between 23 Nov 2025 and 22 Feb 2026. Test scores average over 4, no score below 3, and at least 2 tests warrant a tentative Finnrick Rating of D (Poor).
Finnrick Rating™
Tentative Rating
Welon Peptide Solutions
Retatrutide
Tested 5 Samples
Last test 22 Feb 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 Retatrutide tests from top-rated vendors:
All Retatrutide tests from Welon Peptide Solutions
Samples are tested in commercial labs
Tests Count
5
Scores
AVGMINMAX
Last
22 Feb 2026
First
23 Nov 2025
| Quantity | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Certificate | Test Score | Label | Tested | Difference | Purity | Batch ID | Container | Tested At | Sent By |
| 22 Feb 2026 | View | 10mg | 9.74mg | -2.6% | 99.84% | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 20 Feb 2026 | View | 10mg | 9.22mg | -7.8% | 99.88% | (no batch ID) | No Label / Silver Crimp / Yellow Cap | Lab E | Public | |
| 4 Feb 2026 | View | 10mg | 10.3mg | +3.0% | 99.40% | (no batch ID) | No Label / Silver Crimp / Clear Blue Cap | Lab G | Vendor | |
| 4 Feb 2026 | View | 10mg | 10mg | 99.50% | (no batch ID) | No Label / Silver Crimp / Clear Blue Cap | Lab G | Vendor | ||
| 23 Nov 2025 | View | 15mg | 21.7mg | +44.7% | 99.30% | (no batch ID) | White Label / Copper Crimp / Clear Cap | Lab G | Public | |