Nanjing Peptide Biotechnology
Retatrutide
Finnrick tested 3 samples of Retatrutide (GLP-1, GIP, and GCGR agonist) from Nanjing Peptide Biotechnology between 26 Apr 2026 and 26 Jun 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
Nanjing Peptide Biotechnology
Retatrutide
Tested 3 Samples
Last test 26 Jun 2026
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Samples are tested in commercial labs
Tests Count
3
Scores
AVGMINMAX
Last
26 Jun 2026
First
26 Apr 2026
| Quantity | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Certificate | Test Score | Label | Tested | Difference | Purity | Endotoxins | Batch ID | Container | Tested At | Sent By |
| 26 Jun 2026 | View | 50mg | 38.8mg | -22.4% | 98.20% | n/a | RT500526NP | White label / Silver crimp / Blue cap | Lab G | Public | |
| 26 Jun 2026 | View | 40mg | ⚠️ Sample does not contain Retatrutide | n/a | RT400526NP | White label / Silver crimp / Blue cap | Lab G | Public | |||
| 26 Jun 2026 | View | 20mg | 21.6mg | +8.0% | 99.70% | n/a | RT200526NP | White label / Silver crimp / White cap | Lab G | Public | |
| 26 Apr 2026 | View | 15mg | 14.6mg | -2.7% | 99.90% | below LOQ | RT26031701 | (no data) | Lab E | Public | |