What it is
- Commonly described as a synthetic peptide related to a fragment of thymosin beta-4. The exact substance sold under this name varies and should be verified; it should not be assumed identical to full-length thymosin beta-4.
What researchers have investigated
- Thymosin beta-4 has been studied in tissue-repair models; research specific to products labeled TB-500 is sparse.
Type of evidence
- Preclinical for the fragment; limited early-phase human research on thymosin beta-4 itself for specific indications.
What remains unknown
- The precise identity of marketed products, human efficacy, and safety.
Safety & regulatory context
- Not FDA approved for human use. Prohibited in sport by WADA. Verify status individually.
Inclusion does not imply availability.
Level Health does not sell, prescribe or recommend TB-500. Findings in animals or cells do not establish benefits in people.
Primary sources: PubMed search for TB-500. Reviewed by: pending. Last reviewed: pending.