Also known as: OXT, Pitocin (IV form), Syntocinon
Oxytocin is a neuropeptide research compound (not FDA-approved for human use) studied for social bonding. Oxytocin is the 'bonding hormone' — a natural neuropeptide that reduces anxiety, promotes trust and social connection, and has documented gut and immune effects when used intranasally as a research compound. Research dose: 24–40 mcg as needed or 1-2x daily. Half-life: 5 minutes. Available from COA-verified vendors with code PEPTIDEX for up to 20% off.
Rankings independent · Research use only
Nonapeptide produced in the hypothalamus and released by the posterior pituitary. Binds oxytocin receptors (OXTR) broadly expressed in brain, heart, gut, and immune cells. Modulates HPA axis stress re
⚠️ Educational only · Not medical advice · Consult a doctor · Most peptides are research-only / not FDA-approved for human use
COA-verified vendors · Use code PEPTIDEX for up to 20% off
| Vendor | Purity | List Price | With PEPTIDEX | Code | Shop |
|---|---|---|---|---|---|
Bio Longevity LabsTriple-Tested | 99%+ | $64.97/10mg | $55.22Save 15% | PEPTIDEX | Shop |
Use code PEPTIDEX for 15% off at Bio Longevity Labs.
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Oxytocin (also known as OXT, Pitocin (IV form), Syntocinon) is a prominently researched experimental compound classified strictly within the Neuropeptide framework. Operating primarily through advanced pharmacological pathways, its core mechanism of action is as follows: it nonapeptide produced in the hypothalamus and released by the posterior pituitary. Binds oxytocin receptors (OXTR) broadly expressed in brain, heart, gut, and immune cells. Modulates HPA axis stress response, reduces cortisol, promotes prosocial behavior, accelerates GI motility, and exerts anti-inflammatory effects via NF-kB inhibition. Intranasal administration crosses blood-brain barrier to produce central effects. with a documented biological half-life of roughly 0.083 hours, In preclinical investigative trials and independent academic studies, researchers utilizing Oxytocin have documented significant, quantifiable biological outcomes, primarily focusing on social bonding, anxiety reduction, gut motility, anti-inflammation, libido, trust and empathy. Typical research protocols investigate administering 24 to 40mcg via nasal pathways as needed or 1-2x daily. However, it is critically important to understand that while Oxytocin demonstrates profound physiological potential in highly controlled laboratory settings, it remains classified strictly as a research chemical and has not been approved by the United States Food and Drug Administration (FDA) for human therapeutic, diagnostic, or dietary consumption. Independent chemical analysis via rigorous third-party Certificate of Analysis (COA) testing utilizing High-Performance Liquid Chromatography (HPLC) and Mass Spectrometry (MS) remains the industry gold standard for verifying its base elemental stability when reconstituted appropriately in sterile bacteriostatic water.
Nonapeptide produced in the hypothalamus and released by the posterior pituitary. Binds oxytocin receptors (OXTR) broadly expressed in brain, heart, gut, and immune cells. Modulates HPA axis stress response, reduces cortisol, promotes prosocial behavior, accelerates GI motility, and exerts anti-inflammatory effects via NF-kB inhibition. Intranasal administration crosses blood-brain barrier to produce central effects.
Heinrichs et al.: Intranasal oxytocin reduced cortisol response to social stress and anxiety compared to placebo in a double-blind RCT.
ModerateClinical research demonstrating oxytocin's role in accelerating gastric emptying and improving symptoms in functional gastrointestinal disorders.
ModerateIV/IM oxytocin (Pitocin/Syntocinon) is FDA-approved for obstetric indications only. Intranasal oxytocin as a research compound is NOT FDA-approved. Research use only. Short half-life. May cause water retention at high doses.
See our evidence grading methodology for how we evaluate and grade peptide safety data.
⚠️ For educational purposes only. Not medical advice. Consult a healthcare professional before using any peptide.
Research dose: 24–40 IU intranasal. Half-life ~5 min (IV); central effects persist 30-90 min. Research use only.
Week 1
Acute anxiolytic and prosocial effects within 30 minutes of dosing
Weeks 2–4
Chronic reduction in stress reactivity with consistent use
| Side Effect | Incidence | Severity |
|---|---|---|
Water retention | ~5% | mild |
Nasal irritation | ~5% | mild |
Mild headache | ~3% | mild |
Finding verified, high-purity Oxytocin requires rigorous COA verification. We independently evaluate vendors based on third-party HPLC testing, purity thresholds (≥98%), and batch-specific documentation.
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⚠️ Educational only · Not medical advice · For research use only. Information on this page is compiled from peer-reviewed literature and is intended strictly for educational and informational purposes. Peptides discussed may be unapproved research chemicals — consult a licensed healthcare professional before considering any peptide compound. Read our full disclaimer
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