The FDA scientific assessment distinguishes TB-500-related substances from full-length thymosin beta-4. A topical ocular trial of the latter does not test injected vendor TB-500.
The ocular trial’s primary endpoints were not positive, despite some secondary findings. Neither those findings nor laboratory data establish systemic repair-stack effectiveness.
Sources and proposed-mechanism explanation
Claims borrow from thymosin beta-4 biology, including cell migration and repair. Evidence transfer requires the same molecule, not a shared name.