Reta-Peptide
TB-500
Finnrick tested 4 samples of TB-500 from Reta-Peptide between 24 Jul 2025 and 6 Dec 2025. Test scores average below 4 or some scores below 3, and at least 2 tests, warrant a tentative Finnrick Rating of E (Bad).
Finnrick Rating™
Tentative Rating
Reta-Peptide
TB-500
Tested 4 Samples
Last test 6 Dec 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 TB-500 tests from top-rated vendors:
All TB-500 tests from Reta-Peptide
Samples are tested in commercial labs
Tests Count
4
Scores
AVGMINMAX
Last
6 Dec 2025
First
24 Jul 2025
| Quantity | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Certificate | Variant | Test Score | Label | Tested | Difference | Purity | Batch ID | Container | Tested At | Sent By |
| 6 Dec 2025 | View | Fragment 17-23 | 10mg | 10.9mg | +9.0% | 99.91% | Nov 8, 2025 | No Label / Silver Crimp / Clear Pink Cap | Lab E | Public | |
| 23 Nov 2025 | View | Thymosin Beta-4 | 5mg | 5.3mg | +6.0% | 97.16% | (no batch ID) | No Label / Silver Crimp / Clear Green Cap | Lab A | Public | |
| 21 Oct 2025 | View | 5mg | 5.4mg | +8.0% | 98.13% | Aug 15, 2025 | No Label / Silver Crimp / Clear Green Cap | Lab A | Public | ||
| 24 Jul 2025 | View | 10mg | 11.3mg | +13.0% | 82.88% | (no batch ID) | White Label / Silver Crimp / Clear Cap | Lab E | Public | ||