--- title: "Oxytocin Peptide UK - Compare Prices from 44 Suppliers - PeptideSupermarket®" description: "Compare Oxytocin prices from 44 UK suppliers, from £6.00. Find the cheapest deals, read reviews and save money." url: "https://peptidesupermarket.co.uk/peptide/oxytocin" site: "PeptideSupermarket®" country: "United Kingdom" --- [Home](https://peptidesupermarket.co.uk) › [Peptides](https://peptidesupermarket.co.uk/compare-peptide-prices-uk) › Oxytocin Search # Oxytocin Price Comparison Live prices from 44 UK suppliers, from £6.00, compared side by side so you never overpay. [Endocrine & reproductive](https://peptidesupermarket.co.uk/compare-peptide-prices-uk) Prices checked 10 hours ago We compare prices & may earn a commission. Includes a featured placement — not an endorsement. [Full disclosure](https://peptidesupermarket.co.uk/disclosure). Best Price £6.00 Average £21.37 Highest £55.00 You Could Save 89% 21 results 2mg Compare 21 prices for Oxytocin. Cheapest: £6.00. 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[Best Oxytocin Prices Best prices ranked](https://peptidesupermarket.co.uk/best-oxytocin-prices) [Cheapest Oxytocin Prices Cheapest suppliers compared](https://peptidesupermarket.co.uk/cheapest-oxytocin-prices) [Where to Buy Oxytocin Full buyer's guide](https://peptidesupermarket.co.uk/where-to-buy-oxytocin) [Buy Oxytocin Online UK Cheap Today's hottest deals](https://peptidesupermarket.co.uk/buy-oxytocin-online-uk-cheap) [Oxytocin Price Comparison Live price dashboard](https://peptidesupermarket.co.uk/oxytocin-price-comparison) [Oxytocin UK Supplier Verified UK supplier directory](https://peptidesupermarket.co.uk/oxytocin-uk-supplier) [Oxytocin For Sale Browse listings for sale](https://peptidesupermarket.co.uk/oxytocin-for-sale) Compare another peptide Search PeptideSupermarket® compares prices but doesn't sell products. More All purchases are made directly from third-party suppliers; your relationship is solely with them. We accept no liability for the quality, purity, or legality of any products listed. We may earn a commission when you click through to a supplier and make a purchase. This does not affect pricing information displayed. By using this site you accept responsibility for ensuring purchases comply with applicable laws in your jurisdiction. [Read our full disclosure](https://peptidesupermarket.co.uk/disclosure). ## Oxytocin Profile Fda Approved FDA Approved Neurohypophysial Peptide | Social Bonding & Reproductive Hormone ### Overview Nine-amino-acid peptide hormone produced in hypothalamus, released by posterior pituitary. Functions in social bonding, trust, empathy, reproduction, childbirth, lactation. FDA-approved synthetically for labor induction and postpartum hemorrhage. ### Mechanism of Action Binds oxytocin receptors on uterine smooth muscle, triggering calcium influx and myometrial contractions. Stimulates prostaglandin release. In CNS, modulates GABAergic, serotonergic, dopaminergic neurotransmission; reduces cortisol and HPA axis activity. ### Key Benefits - FDA-approved for labor induction with precise dosing via IV - Immediate onset in obstetric settings - Established safety profile in clinical use - Researched for anxiety, PTSD, autism, sexual dysfunction ### Quick Stats Typical Dose Intranasal: 20-24 IU; Injectable: 10-40 IU; Sublingual: 50-100 IU Frequency As needed for social/sexual support, or 1-2x daily for anxiety/PTSD protocols; max 1 dose per 24hr for sexual function Cycle Duration As needed for research applications; 4-12 weeks for anxiety/autism protocols Storage Refrigerate at 2-8°C; protect from light ## Molecular Information Molecular Weight 1,007.19 Da Length 9 amino acids Type Cyclic nonapeptide Half-Life 3-6 minutes ### Amino Acid Sequence One-letter: `CYIQNCPLG?` Cys 1 Cysteine Position 1 Tyr 2 Tyrosine Position 2 Ile 3 Isoleucine Position 3 Gln 4 Glutamine Position 4 Asn 5 Asparagine Position 5 Cys 6 Cysteine Position 6 Pro 7 Proline Position 7 Leu 8 Leucine Position 8 Gly 9 Glycine Position 9 NH2 10 NH2 Position 10 N-terminus C-terminus Hydrophobic Polar Positive (+) Negative (-) Modified ### Modifications Disulfide bridge between Cys1-Cys6 C-terminal amidation ## Research Indications The following information is derived from published scientific literature and is provided for educational and research reference purposes only. It does not constitute medical advice, diagnosis, or treatment recommendations. These peptides are not approved for human use and are sold exclusively for in-vitro laboratory research. Obstetric (FDA Approved) Research/Emerging ## Dosing Protocols ### injectable IV or IM administration in clinical settings. IV provides immediate onset; requires continuous infusion and monitoring for labor use. | Goal | Dose | Frequency | Route | | --- | --- | --- | --- | | Labor Induction | 0.5-2 mU/min initial, titrate to 1-2 mU/min every 30-60 min | Continuous IV infusion | IV (diluted) | | Postpartum Hemorrhage Prevention | 10 units IM or 10-40 units in IV solution | Single dose after placental delivery | IM or IV infusion | #### Key Tips - FDA-approved pharmaceutical formulation - Immediate onset (IV: 1-3 min; IM: 3-5 min) - Precise dosing control Reconstitution Instructions ### nasal Nasal spray delivers oxytocin directly to brain via olfactory and trigeminal pathways, bypassing blood-brain barrier. Primary research route for psychological/social effects. | Goal | Dose | Frequency | Route | | --- | --- | --- | --- | | Social anxiety/bonding enhancement | 20-24 IU | Once daily or before social situations | Intranasal spray | | Autism research protocols | 24-48 IU daily | Twice daily | Intranasal spray | | PTSD therapy augmentation | 40 IU | Before therapy sessions | Intranasal spray | | Sexual function enhancement | 24-40 IU | 30-45 minutes before activity | Intranasal spray | #### Key Tips - Direct nose-to-brain delivery - Non-invasive, convenient administration - Rapid CNS effects (15-30 min onset) Reconstitution Instructions ### oral Sublingual troches provide needle-free administration. Lower bioavailability (~4.5% vs 11% intranasal) requires higher doses. | Goal | Dose | Frequency | Route | | --- | --- | --- | --- | | General wellness/bonding support | 50-100 IU | Once daily | Sublingual troche | | Sexual function support | 100 IU | 30-45 minutes before activity | Sublingual troche | #### Key Tips - Needle-free, convenient administration - Pre-dosed troches eliminate measurement variability - Suitable for needle-averse individuals ## Peptide Interactions #### Vasopressin (AVP) Monitor Structurally similar; overlapping receptor affinity with potential additive effects. #### Selank Synergistic Complementary anxiolytic effects—Selank modulates GABA; oxytocin acts on central receptors. #### PT-141 (Bremelanotide) Synergistic Complementary sexual function effects via different pathways. #### Kisspeptin Synergistic Both involved in reproduction; kisspeptin stimulates GnRH; oxytocin enhances arousal. #### BPC-157 Compatible No direct interactions; different mechanisms (tissue repair vs social function). #### SSRI Antidepressants Monitor SSRIs may affect endogenous oxytocin; combined use requires healthcare provider oversight. #### Alcohol Avoid Alcohol suppresses oxytocin release; reduces therapeutic effects. ## What to Expect Injectable IV: 1-3 minute onset, 30-60 minute duration; IM: 3-5 minute onset Intranasal 15-30 minute onset, peak 30-60 minutes, 2-4 hour duration Sublingual 30-45 minute onset, peak ~60 minutes, 2-4 hour duration ## Side Effects & Safety #### Common Side Effects - Mild headache - Nasal irritation (intranasal) - Nausea or vomiting - Transient blood pressure changes #### Monitoring - Continuous electronic fetal monitoring during labor (injectable) - Blood pressure monitoring - Electrolyte levels if exceeding 24 IU daily long-term (intranasal) #### Stop Signs - Uterine hyperstimulation or fetal distress (injectable) - Severe or persistent headache - Signs of water intoxication (confusion, seizures, swelling) - Severe nasal irritation or bleeding - Allergic reaction (rash, breathing difficulty) #### Contraindications - Certain obstetric conditions (see prescribing info) - Pregnancy (without medical supervision) - Active sinus infection (intranasal) - Severe hyponatremia ## Quality Checklist #### Good Signs - FDA-approved pharmaceutical product from licensed pharmacies (injectable) - Clear, colorless solution without particles or discoloration - Proper packaging with verified lot number, expiration, concentration - Licensed compounding pharmacy source with USP compliance #### Warning Signs - Variable compounding quality between pharmacies - Nasal congestion reduces intranasal absorption - Sublingual has lower bioavailability than intranasal #### Bad Signs - Cloudy, discolored, or particulate solution - From unlicensed or unverified sources - Improper storage or broken cold chain ## Research & References ### Key References 1. 1996 #### [Oxytocin is required for nursing but is not essential for parturition or reproductive behavior.](https://pubmed.ncbi.nlm.nih.gov/8876199/) PubMed Proceedings of the National Academy of Sciences of the United States of America · Nishimori K, Young LJ, Guo Q, Wang Z, Insel TR, Matzuk MM This mouse knockout study found that oxytocin-deficient females could mate and give birth but showed impaired milk ejection and nursing-related physiology. 2. 2000 #### [Social amnesia in mice lacking the oxytocin gene.](https://pubmed.ncbi.nlm.nih.gov/10888874/) PubMed Nature genetics · Ferguson JN, Young LJ, Hearn EF, Matzuk MM, Insel TR, Winslow JT This study reported that mice lacking the oxytocin gene had impaired social recognition while several nonsocial memory measures were comparatively preserved. 3. 2001 #### [The oxytocin receptor system: structure, function, and regulation.](https://pubmed.ncbi.nlm.nih.gov/11274341/) PubMed Physiological reviews · Gimpl G, Fahrenholz F This review summarized oxytocin receptor structure, signaling pathways, tissue distribution, regulation, and physiological roles in reproductive and central nervous system contexts. 4. 2005 #### [Oxytocin increases trust in humans.](https://pubmed.ncbi.nlm.nih.gov/15931222/) PubMed Nature · Kosfeld M, Heinrichs M, Zak PJ, Fischbacher U, Fehr E This double-blind experiment found that intranasal oxytocin was associated with larger monetary transfers in a trust game, without a comparable change in a nonsocial risk task. 5. 2005 #### [Oxytocin modulates neural circuitry for social cognition and fear in humans.](https://pubmed.ncbi.nlm.nih.gov/16339042/) PubMed The Journal of neuroscience : the official journal of the Society for Neuroscience · Kirsch P, Esslinger C, Chen Q, Mier D, Lis S, Siddhanti S, Gruppe H, Mattay VS, Gallhofer B, Meyer-Lindenberg A This functional neuroimaging study reported altered amygdala activation and connectivity during social and fear-related tasks after intranasal oxytocin administration. 6. 2021 #### [Intranasal Oxytocin in Children and Adolescents with Autism Spectrum Disorder.](https://pubmed.ncbi.nlm.nih.gov/34644471/) PubMed The New England journal of medicine · Sikich L, Kolevzon A, King BH, McDougle CJ, Sanders KB, Kim SJ, Spanos M, Chandrasekhar T, Trelles MDP, Rockhill CM, Palumbo ML, Witters Cundiff A, Montgomery A, Siper P, Minjarez M, Nowinski LA, Marler S, Shuffrey LC, Alderman C, Weissman J, Zappone B, Mullett JE, Crosson H, Hong N, Siecinski SK, Giamberardino SN, Luo S, She L, Bhapkar M, Dean R, Scheer A, Johnson JL, Gregory SG, Veenstra-VanderWeele J This randomized clinical trial in children and adolescents with autism spectrum disorder found no significant between-group difference versus placebo on the primary social-functioning endpoint over 24 weeks. 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