Xenin 8 TFA is primarily used in research settings to study its effects on biological systems, particularly in the field of endocrinology and metabolism. It is often employed to investigate its role in regulating blood sugar levels and its interaction with insulin secretion. Researchers utilize this compound to explore its potential therapeutic applications in conditions like diabetes and metabolic disorders. Additionally, Xenin 8 TFA is studied for its influence on gastrointestinal functions, including its effects on gastric motility and appetite regulation. Its application in experimental models helps in understanding the broader physiological roles of xenin peptides.