Used in biomedical research to measure levels of substance P, a neuropeptide involved in pain transmission, inflammation, and neurogenic responses. The kit enables quantification of substance P in tissue samples, cell cultures, or biological fluids such as plasma or cerebrospinal fluid. Commonly applied in studies related to neurological disorders, chronic pain, migraine, depression, and inflammatory diseases. Also used in pharmacological research to evaluate the effects of drugs on neurokinin signaling pathways. Provides a sensitive and specific method for high-throughput analysis in laboratory settings.