Oxytocin
FDA ApprovedStrong EvidenceOxytocin (Synthetic)
The 'bonding hormone' — a naturally occurring nonapeptide studied for social behavior, anxiety reduction, wound healing, and metabolic effects.
Half-Life
~1–6 minutes (IV); ~30 minutes (intranasal)
Molecular Weight
1007.2 g/mol
Oxytocin is a nine-amino-acid neuropeptide produced in the hypothalamus and released by the posterior pituitary. It is best known for its role in childbirth (uterine contractions) and lactation, but research has revealed a far broader role in social bonding, trust, anxiety modulation, and metabolic function. FDA-approved as Pitocin for obstetric use, intranasal oxytocin has been extensively studied in psychiatric research for autism spectrum disorder, social anxiety, and PTSD. More recent research has identified roles in wound healing, bone density, and adiposity regulation.
Also Known As
Amino Acid Sequence
Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Leu-Gly-NH2 (disulfide bond between Cys1-Cys6)
Reconstitution
Available as nasal spray. Research peptide: reconstitute in sterile saline at 40 IU/mL (1 IU ≈ 1.68 mcg).
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