Oxytocin is a nine-amino-acid neuropeptide hormone synthesized in the hypothalamus and released by the posterior pituitary, widely studied in neuroscience and behavioral research. It is supplied as a high-purity white lyophilized powder, >=99% by HPLC, in sealed vials for laboratory use. Oxytocin is investigated in research on social behavior, pair bonding, stress response, reproductive physiology and neuropeptide signaling, and is commonly applied in cell-based assays and preclinical neuroscience studies. The freeze-dried form ensures high stability and convenient reconstitution for reproducible experimental dosing. Strict quality control is maintained on every batch, and COA is available for specific batches on request. Keep the unopened product sealed at 2-8 degree C protected from light; -20 degree C is recommended for long-term storage avoiding repeated freeze-thaw cycles. Small and bulk orders are both welcome, with OEM and discreet neutral packing available. For laboratory research use only, not for human or veterinary application.