Shanghai ERP peptide Biotechnology
Retatrutide
Finnrick tested 6 samples of Retatrutide (GLP-1, GIP, and GCGR agonist) from Shanghai ERP peptide Biotechnology between 11 Dec 2025 and 1 Jan 2026. Test scores average over 6, no score below 5, and at least 6 tests warrant a confident Finnrick Rating of B (Good).
Finnrick Rating™
Shanghai ERP peptide Biotechnology
Retatrutide
Tested 6 Samples
Last test 1 Jan 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 Shanghai ERP peptide Biotechnology
Samples are tested in commercial labs
Tests Count
6
Scores
AVGMINMAX
Last
1 Jan 2026
First
11 Dec 2025
| Quantity | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Certificate | Test Score | Label | Batch | Tested | Difference | Purity | Batch ID | Container | Tested At | Sent By |
| 1 Jan 2026 | View | 20mg | 23.9mg | 21.4mg | -10.3% | 99.70% | 635966 | No Label / Silver Crimp / Blue Cap | Lab G | Public | |
| 29 Dec 2025 | View | 12mg | (no batch claim) | 12mg | 99.95% | (no batch ID) | No Label / Silver Crimp / Purple Cap | Lab E | Public | ||
| 17 Dec 2025 | View | 20mg | (no batch claim) | 18.4mg | -8.0% | 99.95% | (no batch ID) | No Label / Silver Crimp / Yellow Cap | Lab E | Public | |
| 16 Dec 2025 | View | 15mg | (no batch claim) | 16.7mg | +11.3% | 99.70% | (no batch ID) | No Label / Silver Crimp / Black Cap | Lab G | Public | |
| 11 Dec 2025 | View | 5mg | (no batch claim) | 4.55mg | -9.0% | 99.95% | (no batch ID) | No Label / Silver Crimp / Blue Cap | Lab E | Public | |
| 11 Dec 2025 | View | 12mg | (no batch claim) | 12mg | 98.30% | RT-12 | No Label / Silver Crimp / Purple Cap | Lab E | Public | ||