
Lipeptides
TB-500
Finnrick tested 4 samples of TB-500 from Lipeptides between 9 Oct 2025 and 15 May 2026. 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
Lipeptides
TB-500
Tested 4 Samples
Last test 15 May 2026
Take Action
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 Lipeptides
Samples are tested in commercial labs
Tests Count
4
Scores
AVGMINMAX
Last
15 May 2026
First
9 Oct 2025
| Quantity | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Certificate | Variant | Test Score | Label | Tested | Difference | Purity | Batch ID | Container | Tested At | Sent By |
| 15 May 2026 | View | 5mg | 5.7mg | +14.0% | 99.50% | 03-11-2026 | White Label / Silver Crimp / White Cap | Lab G | Public | ||
| 18 Mar 2026 | View | 5mg | 4.71mg | -5.8% | 97.30% | February 2, 2026 | No Label / Silver Crimp / White Cap | Lab E | Public | ||
| 6 Feb 2026 | View | Thymosin Beta-4 | 10mg | 9.91mg | -0.9% | 99.27% | November 5, 2025 | No Label / Silver Crimp / Red Cap | Lab E | Public | |
| 9 Oct 2025 | View | 5mg | 4.24mg | -15.2% | 96.77% | (no batch ID) | No Label / Silver Crimp / Blue Cap | Lab E | Public | ||