Thymosin Alpha-1 (TA1) is an FDA approved peptide (unlike BPC 157) and a large body of research supports its benefits
Sigal M, Rothenberg ME, Logan CY, Lee JY, Honaker RW, Cooper RL, Passarelli B, Camorlinga M, Bouley DM, Alvarez G, Nusse R, Torres J, Amieva MR (2015) Helicobacter pylori activates and expands Lgr5+ stem cells through direct colonization of the gastric glands
PMID: 28006086
Consequently, it serves as a valuable tool for investigations
Miller C, Folkes LK, Mottley C, Wardman P, Mason RP
Physiological dose of lycopene suppressed oxidative stress and enhanced serum levels of immunoglobulin M in patients with Type 2 diabetes mellitus: a possible role in the prevention of long-term complications