How long does TB-500 last in the body?

Nobody knows. The FDA's 2026 review found no study at all of how the body handles TB-500 in people. So there is no measured half-life, clearance rate, or length of effect in people to report. Claims about how long it lasts are borrowed from animal work on the related full-length parent peptide, thymosin beta-4. Read them as guesses, not measurements.

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.