Peptide Database

Pitocin · the "bonding hormone"

Oxytocin is a 9-amino-acid neuropeptide produced in the hypothalamus and released by the posterior pituitary. Beyond its classic roles in parturition and lactation, research demonstrates effects on social bonding, trust, empathy, fear extinction, and autism spectrum disorder. Intranasal oxytocin research has produced mixed results in clinical trials, but it remains one of the most studied peptides in social neuroscience.

ADH · Antidiuretic Hormone

Vasopressin (AVP) is a 9-amino-acid neuropeptide produced in the hypothalamus and released by the posterior pituitary. It regulates water reabsorption via V2 receptors in renal collecting ducts and vasoconstriction via V1a receptors in blood vessels. Clinically used for diabetes insipidus, septic shock vasodilation, GI hemorrhage, and cardiac arrest. Extensive research also examines its roles in social bonding, memory, and stress responses.