Oxytocin
Also known as: Love hormone · Pitocin · Syntocinon · CYIQNCPLG
Oxytocin binds oxytocin receptors (OTR) distributed throughout the brain (amygdala, hippocampus, brainstem, nucleus accumbens), periphery (uterus, mammary gland, heart, kidney). In the CNS, OTR activation in the amygdala reduces fear and anxiety by dampening amygdala threat responses. In the nucleus...
What It Is
Oxytocin binds oxytocin receptors (OTR) distributed throughout the brain (amygdala, hippocampus, brainstem, nucleus accumbens), periphery (uterus, mammary gland, heart, kidney). In the CNS, OTR activation in the amygdala reduces fear and anxiety by dampening amygdala threat responses. In the nucleus accumbens it enhances social reward and bonding. It modulates serotonin and dopamine release, contributing to mood and social motivation. Peripherally, it causes uterine contraction, milk letdown, and has cardioprotective effects. Intranasal administration achieves significant CNS penetration via olfactory neurons, bypassing the blood-brain barrier.
Supplies Needed
Reconstitution solvent
Intranasal administration device
Subcutaneous injection
Storage
Store at 2-8C. Very temperature sensitive. Do not freeze.
Refrigerate at 2-8C; use within 14 days. Very short stability.
This information is provided for educational and research purposes only. Not approved for human consumption by the FDA or any regulatory body. Always consult a qualified medical professional.
Dosing Protocols
Timing: 20-30 minutes before social interaction or intimacy. 10 IU = approximately 2 puffs of standard nasal spray; effects begin within 20-30 minutes
↓ Apply these values to the reconstitution calculatorTiming: 20-30 minutes before social or intimate activity. Standard research dose for social bonding and anxiety reduction; higher doses do not produce proportionally greater effects (inverted-U dose-response)
↓ Apply these values to the reconstitution calculatorTiming: 30 minutes before intended effect. Some research uses subcutaneous injection for more reliable CNS delivery vs intranasal variability
↓ Apply these values to the reconstitution calculatorWeekly Timeline
| Week | Expected Effects |
|---|---|
| Week 1 | Acute effects within 30 minutes of each dose: enhanced social warmth, reduced anxiety, improved sexual arousal and intimacy |
| Week 4 | With regular use: cumulative improvements in social connectivity and relationship quality; improved baseline anxiety |
Reconstitution Calculator
1 unit on U-100 syringe = 0.01 mL · Always label your vial after reconstitution
Injection Technique & Reconstitution
- Oxytocin is typically available as a nasal spray (Syntocinon) or solution for injection
- For lyophilized powder: Remove flip-top cap from vial
- Swab rubber stopper with alcohol swab
- Draw sterile saline into syringe
- Inject slowly down the vial wall and swirl gently
- For intranasal: transfer to metered nasal spray bottle
- Label with date; refrigerate at 2-8C
Use our free calculate your Oxytocin dose to get the exact syringe units for your vial size and dose.
Mechanism of Action
Oxytocin binds oxytocin receptors (OTR) distributed throughout the brain (amygdala, hippocampus, brainstem, nucleus accumbens), periphery (uterus, mammary gland, heart, kidney). In the CNS, OTR activation in the amygdala reduces fear and anxiety by dampening amygdala threat responses. In the nucleus accumbens it enhances social reward and bonding. It modulates serotonin and dopamine release, contributing to mood and social motivation. Peripherally, it causes uterine contraction, milk letdown, and has cardioprotective effects. Intranasal administration achieves significant CNS penetration via olfactory neurons, bypassing the blood-brain barrier.
Key Research Papers
Landmark study demonstrating that intranasal oxytocin increased trust and social bonding behaviors in healthy subjects, establishing the social behavioral effects of intranasal oxytocin.
View on PubMed →Stacks Well With
PT-141 enhances central sexual arousal via MC4R while oxytocin promotes bonding, sensory enhancement, and emotional connection. Synergistic for sexual experience enhancement.
Selank provides baseline anxiolytic effects while oxytocin promotes social bonding and trust. Complementary for social anxiety and relationship-focused use.
Frequently Asked Questions
Oxytocin is used for social bonding enhancement, anxiety reduction, sexual function improvement, and intimacy enhancement. It is also FDA-approved (Pitocin/Syntocinon) for labor induction and postpartum hemorrhage prevention.
Research shows intranasal oxytocin reaches the brain via olfactory neurons with measurable CNS effects. However, CNS delivery is variable. Effects on social behavior, trust, and anxiety are documented in clinical trials using 24-40 IU intranasal doses.
Legal Status by Region
This information is provided for educational and research purposes only. Not approved for human consumption by the FDA or any regulatory body. Always consult a qualified medical professional.