What is the half-life of Oxytocin?

Oxytocin has a half-life of 3-5 minutes (IV); ~20-30 minutes (intranasal, sustained brain effects), which is why it's typically administered as needed, 30-60 minutes before anticipated activity for optimal therapeutic effect.

How do I reconstitute Oxytocin?

Add bacteriostatic water to the peptide vial slowly down the side. Typical reconstitution uses 2-3ml of water for a 5mg vial. Gently swirl, do not shake.

Healing & Recovery

Approved

Oxytocin

Also known as: OT, Pitocin, Syntocinon, The Love Hormone

Overview

Key Facts

Primary Goal: A naturally occurring nonapeptide hormone produced in the hypothalamus and released by the posterior pituitary

A naturally occurring nonapeptide hormone produced in the hypothalamus and released by the posterior pituitary. Beyond its well-known role in labor and lactation, oxytocin is increasingly studied for its effects on sexual function, pair bonding, social cognition, and emotional regulation. Half-Life 3-5 minutes (IV); ~20-30 minutes (intranasal, sustained brain effects) Typical Dose 10–40 IU Frequency as needed, 30-60 minutes before anticipated activity Cycle Length As needed; no established cycling protocol for off-label use

Dosing Information

Half-Life

3-5 minutes (IV); ~20-30 minutes (intranasal, sustained brain effects)

Typical Dose

10–40 IU

Frequency

as needed, 30-60 minutes before anticipated activity

Cycle Length

As needed; no established cycling protocol for off-label use

Administration Routes:

subcutaneousintravenous

Storage & Reconstitution

Unreconstituted (Powder)

Temperature2–8°C (36–46°F)

DurationUp to 3 months

Reconstituted (Mixed)

Temperature2–8°C (36–46°F)

Duration2-4 weeks

Research Summary

Approved

Oxytocin has been FDA-approved for decades (Pitocin) for labor induction and postpartum hemorrhage. Research into its behavioral effects has expanded dramatically, with studies showing intranasal oxytocin enhances sexual arousal, orgasm satisfaction, and mail-coital bonding in both sexes. Neuroimaging studies confirm increased activation in reward and social cognition networks. Clinical trials are exploring its potential in autism spectrum disorder, social anxiety, PTSD, and relationship therapy.