Oxytocin
About
About Oxytocin
Oxytocin is a neuropeptide hormone produced in the hypothalamus with roles in social bonding, stress response, and metabolic regulation. In optimization medicine it is used off-label for anxiety reduction, libido support, and gut motility improvement. Research suggests it may also reduce food intake and improve body composition in some populations. Compounded intranasal and subcutaneous formulations are available through licensed providers.
Science
Mechanism of Action
Binds oxytocin receptors throughout the brain and peripheral tissues, modulating the HPA stress axis, reducing cortisol, and activating reward pathways. Peripheral oxytocin receptors in adipose tissue and the gut contribute to its metabolic effects.
Dosing
Typical Protocol
10–40 IU intranasal spray once or twice daily; or 1–2 IU subcutaneous injection as needed.
⚠ Protocol information is for educational purposes only. Dosing must be determined by a licensed physician based on individual health status and goals.
Regulatory
Legal Status in 2026
This compound is legal to prescribe and dispense through a licensed 503A or 503B compounding pharmacy with a valid prescription. It is not FDA-approved as a finished drug product, but compounding is explicitly permitted under federal law. Quality and sterility standards vary by pharmacy — look for PCAB-accredited compounders.
Evidence
Evidence Tier
Evidence primarily from animal studies, cell cultures, or small pilot human trials. Results are promising but have not yet been confirmed in large-scale human RCTs. Effects in humans may differ from animal models.
Find a Verified Provider
See which Vial-verified providers offer Oxytocin — with trust scores, legal credentials, and pricing transparency.