OT-9 Amino
Also known as: OT-9 Amino, Oxytocin 9 Amino
A nonapeptide oxytocin variant referring to the nine-amino-acid oxytocin sequence, studied for its roles in bonding, mood, social behavior and reproductive physiology. It is sold as a research-grade analog of native oxytocin.
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Mechanism of Action
OT-9 Amino corresponds to the nine-residue oxytocin peptide, a cyclic structure with a disulfide bridge. It acts as an agonist at the oxytocin receptor, a G-protein-coupled receptor expressed in the central nervous system and peripheral tissues such as the uterus and mammary glands. Central receptor activation modulates social bonding, trust, anxiety and reward circuitry, while peripheral activation drives uterine contraction and milk ejection. It can also weakly cross-react with vasopressin receptors due to structural similarity.
- Half-life
- Very short; roughly a few minutes in circulation
- Administration Routes
- intranasal, subcutaneous
- Research Status
- Research Chemical
Reported Benefits
- Studied for social bonding and trust behaviors
- May reduce anxiety and support mood
- Investigated for prosocial and empathy-related effects
- Modulates reproductive and lactation physiology
- Explored for intimacy and sexual-health research
Potential Side Effects
- Nausea
- Headache
- Changes in blood pressure or heart rate
- Uterine contractions, relevant in pregnancy
- Nasal irritation with intranasal use
Common Dosing
Oxytocin research commonly uses intranasal microgram-scale or international-unit dosing; no standardized regimen exists for this analog. Provided for research-use-only context and not as personal medical advice.
The dosing information above is aggregated from research literature and anecdotal community reports for educational purposes only. It is not a recommendation, prescription, or medical advice. Peptides are sold as research chemicals only and are not intended for human use.
Contraindications
- Pregnancy, due to uterotonic effects, unless medically supervised
- Cardiovascular instability
- Known hypersensitivity to oxytocin or analogs
Oxytocin
Oxytocin is a nine-amino-acid hypothalamic neuropeptide hormone involved in social bonding, reproduction, and uterine contraction. It is FDA-approved clinically for labor induction and is studied for its effects on trust, intimacy, and social behavior.
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Oxytocin increases trust in humans
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