Lab reports
TB-500 lab reports
Every batch of TB-500we’ve released, tested by an outside lab before it went on sale. The one shipping now is lot 3XWAU3: 99.46% pure by HPLC, tested by Freedom Diagnostics on 14 SEPT 2026. The signed report is below — read it before you buy, not after.
The batch shipping now
- Lot number
- 3XWAU3
- Product
- TB-500 10mg
- Purity (HPLC)
- 99.46%
- Tested by
- Freedom Diagnostics
- Tested on
- 14 SEPT 2026
- Net peptide content
- 9.91 mg
Contaminant screens
This report covers identity, purity and content. Screens the lab didn’t run aren’t listed — we never pad a certificate.
Every TB-500batch we’ve released
Anyone can show you one good report. Here are all 5, newest first, each with its own signed certificate. Nothing hidden, nothing cherry-picked.
TB-500 10mg
| Batch | Purity (HPLC) | Tested by | Tested on | Report |
|---|---|---|---|---|
| 3XWAU3Latest | 99.46% | Freedom Diagnostics | 14 SEPT 2026 | Signed PDF |
| C7T15H | 99.17% | Freedom Diagnostics | 19 AUG 2026 | Signed PDF |
| PQ7MWD | 99.58% | Freedom Diagnostics | 30 MAY 2026 | Signed PDF |
| TB10-12222025-J | 99.72% | Freedom Diagnostics | 30 APR 2026 | Signed PDF |
| 600001 | 99.85% | Freedom Diagnostics | 20 FEB 2026 | Signed PDF |
How to read these numbers
The purity is the number the lab measured, not a floor. 99.46% means 99.46%, never “at least 99”. It comes from reversed-phase HPLC; identity is confirmed separately by mass spectrometry.
We don’t test our own product. Every lot goes to an independent, named lab — this one to Freedom Diagnostics. The certificate is published here before the buy button works, and the lot number on your vial is the one on the report.
If a batch misses its spec, it never ships. And if a vial you hold doesn’t match its report, test it at any lab you like and we refund every dollar. Holding a vial now? Look up its lot number in the registry.
What the published studies report about TB-500 — cited, numbered, and hedged to the evidence — is in What Is TB-500? The Thymosin Beta-4 Fragment, Explained.
The full walkthrough — matching the lot, reading the HPLC figure, confirming identity by mass spectrometry — is in How to Read a Peptide COA (and Spot a Bad One).
For research use only. Not for human or veterinary use. Not intended to diagnose, treat, cure, or prevent any disease. Sold and handled strictly as a laboratory research chemical; by purchasing you confirm you are a qualified researcher.