Buy Peptides Oxytocin (2мг / флакон) Powder Online What is Oxytocin? Oxytocin is a mammalian neurohypophysial hormone. Produced by the hypothalamus and stored and secreted by the posterior pituitary gland, oxytocin acts primarily as a neuromodulator in the brain. Oxytocin is released in large amounts after distension of the cervix and uterus during labor, facilitating birth, maternal bonding, а также, after …