Substance P is an 11-amino-acid neuropeptide that primarily activates the neurokinin-1 (NK1) receptor, studied in neuroscience and inflammation research. It is supplied as a high-purity white lyophilized powder at >=99% HPLC purity in sealed vials. Substance P is investigated in research on pain signaling, neurogenic inflammation and NK1-receptor pharmacology, and is commonly applied in cell-based and preclinical studies. The lyophilized form provides good stability and reproducible experimental dosing. All lots pass strict quality verification and lot-specific certificates can be provided on request. Keep unopened material sealed at 2-8 degree C away from light and moisture; store at -20 degree C for longer periods and avoid repeated freezing. We accept small trial and large bulk orders and provide OEM, private-label and neutral discreet-packaging services with global delivery. Laboratory research use only.