α-Neoendorphin (1-8) is a 8-amino acid peptide derived from the N-terminal of α-Neoendorphin. α-Neoendorphin is an endogenous opioid peptide and is a part for the neoendorphins which are a group of endogenous opioid peptides derived from the proteolytic cleavage of prodynorphin isolated from procine hypothalmus and pituitary.

Glp-1 (7-37)acetate is an intestinal insulin hormone that enhances glucose-induced insulin secretion.

Cyclic somatostatin Acetate is a cyclic tetradecapeptide regulating many endocrine and nervous system functions.