What is TB-500?
TB-500 is the name for a seven amino acid piece of thymosin beta-4, Ac-LKKTETQ. It is not the full 43 amino acid protein it is often mixed up with. The FDA's July 2026 review found no published study giving this piece to a person in any form, and no side-effect reports in its safety database. The study record often quoted for TB-500 actually belongs to full-length thymosin beta-4, a different molecule. Full profile at /compounds/tb-500.
Studies in people from the compound pages this answer belongs to
Educational use only. This database summarizes published research and is not medical advice. Where a dose appears it is a record of what a trial or clinic ran, or what people describe doing, with its source attached. Nothing here is a recommendation for personal use.
Part of healing and recovery peptides. BPC-157, TB-500, GHK-Cu, and the tissue repair family, including what actually has human data.