Medical disclaimer

This site is an educational reference about TB-500. It is not medical advice, and nothing here is a recommendation to buy, possess or use any compound. We sell nothing.

TB-500 (a thymosin beta-4 fragment) is not FDA approved. FDA reports no human exposure data for it, and it is sold only for research use with no established human efficacy. No published human study supports any TB-500 use, no human dose has been established, and FDA has stated that it lacks the information to know whether the compound would cause harm if administered to humans, naming immunogenicity from aggregation and peptide-related impurities as its specific concern.

Human trial results for thymosin beta-4, the full 43-amino-acid protein, appear on this site as context. They are not evidence about TB-500 and must not be read that way.

Reading this site does not create any professional relationship. Decisions about your health belong with you and a licensed clinician who can examine you. If you are a competing athlete, note that thymosin beta-4 and its derivatives including TB-500 are prohibited at all times under the WADA Prohibited List (S2), as non-Specified Substances. If you are experiencing a medical emergency, call your local emergency number.