Are oral peptides effective
doi:10.1080/14647273.2018.1515503
Where the Risk Is Highest Consumers who currently obtain BPC-157, TB-500, and MOTS-C through online sellers that market them as "for research use only" or "not for human consumption" are already taking an uncharacterized risk, since those products are not manufactured under pharmaceutical-grade conditions and are not subject to purity or potency standards
Johnson K, Mikhail P, Kim MG, Bosco A, Huynh W
Chen ML, Pothoulakis C, LaMont JT: Protein kinase C signaling regulates ZO-1 translocation and increased paracellular flux of T84 colonocytes exposed to Clostridium difficile toxin A
Semax is a synthetic heptapeptide with the sequence Met-Glu-His-Phe-Pro-Gly-Pro (MEHFPGP), an analog of the ACTH(4-10) fragment stabilized by the addition of the Pro-Gly-Pro tripeptide