Buy Oxytocin in Canada: Vial and Nasal Spray

You can buy oxytocin in Canada from Vistara Labs in two formats: a 2 mg lyophilised vial, and a ready-mixed nasal spray in 2 mg and 4 mg bottles, all shipped from within Canada by Canada Post Xpresspost. Oxytocin is one of the few peptides with both a long clinical history and a large human research record, and most of that research delivers it as a nasal spray. This guide covers what it is, what the studies found, which format suits which work and how to buy oxytocin Canada-wide.

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At a glance: Vistara Labs stocks oxytocin as a 2 mg vial and as a ready-mixed nasal spray (2 mg in 5 mL or 4 mg in 10 mL), independently tested at 99.2% purity, with a certificate of analysis on our Lab Reports page, shipped from within Canada by Canada Post Xpresspost, with same-business-day dispatch on orders placed before 3 pm Pacific, Monday to Friday. We deliver to every province, including Ontario, Quebec, British Columbia and Alberta.

What is oxytocin?

Oxytocin is a nine-amino-acid peptide, Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Leu-Gly-NH2, closed into a ring by a disulfide bridge between its two cysteines. It is made mainly in the hypothalamus, released into the blood from the posterior pituitary, and acts on a single receptor. Its classic roles are uterine contraction in labour and milk let-down, and it was the first peptide hormone made in a laboratory, work recognised with the 1955 Nobel Prize in Chemistry.

Vial or nasal spray?

Product	What is in it	Ready to use?
Oxytocin vial	2 mg, lyophilised powder	After reconstitution
Oxytocin Nasal Spray, 2 mg	2 mg in 5 mL, about 29 sprays	Yes, pre-mixed
Oxytocin Nasal Spray, 4 mg	4 mg in 10 mL, about 57 sprays	Yes, pre-mixed

Both spray sizes hold 400 mcg per mL, which works out to about 70 mcg per spray. They arrive pre-mixed in saline in a sealed metered atomiser, so there is no reconstitution step and no bacteriostatic water to buy. The vial is lyophilised and is reconstituted with bacteriostatic water; the oxytocin reconstitution guide covers the arithmetic. The 2 mg spray also sits in the Libido Spray Stack alongside the PT-141 Nasal Spray.

What has oxytocin nasal spray research shown?

• Trust, 2005. In a study published in Nature, intranasal oxytocin caused a substantial increase in trust between people, and the effect was not explained by a general readiness to take risks.
• Emotion recognition, 2010. In a double-blind, randomised, placebo-controlled crossover study of 16 males aged 12 to 19 with autism spectrum disorders, oxytocin nasal spray improved performance on the Reading the Mind in the Eyes test.
• Reaching the spinal fluid, 2013. In 15 adults (11 given oxytocin, 4 placebo), nasal oxytocin raised levels in both blood and cerebrospinal fluid. Blood levels peaked at 15 minutes, while spinal fluid levels took up to 75 minutes to rise significantly.
• Appetite and metabolism, 2015. In a randomised, placebo-controlled crossover study of 25 men, a single intranasal administration reduced the calories eaten at a test meal, with a preferential effect on fat intake, shifted fuel use from carbohydrate toward fat and improved insulin sensitivity.
• Six weeks of use, 2020. In a randomised, double-blind trial of 106 adults with autism, nasal oxytocin reduced repetitive behaviour and increased gaze on socially relevant regions compared with placebo; the primary social-reciprocity score improved in both groups alike.

Our article Oxytocin nasal spray: what the human research shows reads these studies more closely, and intranasal vs subcutaneous research routes explains why the nose is studied as a route to the brain.

Sources: Kosfeld M, Heinrichs M, Zak PJ, et al. Nature. 2005. PMID 15931222. Guastella AJ, Einfeld SL, Gray KM, et al. Biol Psychiatry. 2010. PMID 19897177. Striepens N, Kendrick KM, Hanking V, et al. Sci Rep. 2013. PMID 24310737. Lawson EA, Marengi DA, DeSanti RL, et al. Obesity (Silver Spring). 2015. PMID 25865294. Yamasue H, Okada T, Munesue T, et al. Mol Psychiatry. 2020. PMID 29955161.

Where to buy oxytocin in Canada

• No customs step. Every order ships from within Canada, so the vial or spray travels as an ordinary domestic parcel.
• Same-day dispatch. Orders placed before 3 pm Pacific, Monday to Friday, leave the same business day by tracked Canada Post Xpresspost.
• Keep it cold. Oxytocin is heat-sensitive, so the spray and any reconstituted vial are kept refrigerated; our guide to storing peptides covers solutions.
• Every spray in one place. Our guide to peptide nasal sprays in Canada lists the full range.

Frequently asked questions

How much oxytocin is in each spray?

Both sizes hold 400 mcg per mL, so each spray contains about 70 mcg. The 2 mg bottle (5 mL) gives about 29 sprays and the 4 mg bottle (10 mL) about 57.

Does the oxytocin nasal spray need mixing?

No. It arrives pre-mixed in a sealed metered atomiser. Only the 2 mg lyophilised vial is reconstituted, with bacteriostatic water.

What has oxytocin nasal spray research shown?

Published studies reported increased trust between people (Nature, 2005), better emotion-recognition scores in young people with autism (2010), oxytocin reaching the cerebrospinal fluid after a nasal administration (2013), and fewer calories eaten at a test meal with improved insulin sensitivity in men (2015).

Which stack includes the oxytocin spray?

The Libido Spray Stack pairs the 2 mg Oxytocin Nasal Spray with the PT-141 Nasal Spray, both ready-mixed in metered atomisers.

Where can you buy oxytocin in Canada?

Vistara Labs supplies oxytocin as a 2 mg lyophilised vial and as a ready-mixed nasal spray in 2 mg and 4 mg sizes, shipped from within Canada by Canada Post Xpresspost.

Nasal spray. Sizes, sprays per bottle and the intranasal studies are set out in buying oxytocin nasal spray in Canada.