Neuronostatin-13 (Human) is a 13 amino acid residue peptide with carboxyl-terminal amidation, the primary structure is conserved in human chimpanzee and some other mammals.

Nemolizumab (CIM331) is a humanized monoclonal antibody targeting the human interleukin-31 receptor A, inhibiting IL-31 binding and subsequent signal transduction. It is useful for studying atopic dermatitis with pruritus.

Lactic acid (2-hydroxypropanoic acid) is a product of glycolysis and is widely found in nature.Lactic acid is produced in the body during hypoxia in contracted skeletal muscle and can be removed under fully aerobic conditions.