
Wuhan Wansheng Biotechnology
TB-500
Finnrick tested 4 samples of TB-500 from Wuhan Wansheng Biotechnology between 4 Aug 2025 and 17 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
Wuhan Wansheng Biotechnology
TB-500
Tested 4 Samples
Last test 17 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 Wuhan Wansheng Biotechnology
Samples are tested in commercial labs
Tests Count
4
Scores
AVGMINMAX
Last
17 Dec 2025
First
4 Aug 2025
| Quantity | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Certificate | Variant | Test Score | Label | Tested | Difference | Purity | Batch ID | Container | Tested At | Sent By |
| 17 Dec 2025 | View | Thymosin Beta-4 | 5mg | 4.93mg | -1.4% | 87.23% | (no batch ID) | No Label / Silver Crimp / Red Cap | Lab E | Public | |
| 25 Nov 2025 | View | Thymosin Beta-4 | 20mg | 5.84mg | -70.8% | 97.98% | (no batch ID) | No Label / Copper Crimp / Clear Cap | Lab E | Public | |
| 21 Oct 2025 | View | 5mg | 4.85mg | -3.0% | 96.05% | (no batch ID) | No Label / Silver Crimp / Clear Green Cap | Lab E | Public | ||
| 4 Aug 2025 | View | 10mg | 9.16mg | -8.4% | 93.26% | WWB-0620 | White Label / Silver Crimp / Yellow Cap | Lab E | Public | ||