Oxytocin

Name: Oxytocin
Brand: Canada Peptides
Price: 40.0 CAD
Availability: InStock

$40.00

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This batch of Oxytocin Peptide has been third party lab tested and verified for quality.

Contents: Oxytocin (Neuropeptide Hormone)
Form: Powder
Purity: 99.3%

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Oxytocin Peptide

Oxytocin is a cyclic nonapeptide hormone synthesized in the hypothalamus and secreted by the posterior pituitary. It plays essential roles in reproductive physiology, social behavior, and stress regulation. In research settings, Oxytocin is used to study neuroendocrine signaling, emotional and social cognition, stress response, and parturition-related processes.

Overview

Oxytocin functions as both a peripheral hormone and a central neuromodulator. It binds to the oxytocin receptor (OXTR), a G-protein-coupled receptor (GPCR) widely expressed in the uterus, mammary glands, and specific regions of the brain.
Peripherally, Oxytocin mediates uterine smooth muscle contraction and milk ejection during lactation. Centrally, it influences social bonding, trust, and emotional behavior. Experimental models have demonstrated its role in anxiety modulation, pair bonding, and prosocial behaviors, as well as their interaction with dopaminergic and corticotropin-releasing hormone systems.

Chemical Makeup

Molecular Formula: C43H66N12O12S2
Molecular Weight: 1007.2 g/mol
Amino Acid Sequence: Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Leu-Gly-NH₂ (disulfide bridge between Cys¹ and Cys⁶)
Compound Class: Nonapeptide hormone, neuropeptide
Form: Lyophilized powder
Purity: ≥99% (per COA)
Sizes Available: 2mg, 5mg, 10mg vials

Research and Clinical Studies

Neuroendocrine Function
Oxytocin is a principal regulator of parturition and lactation, acting on uterine and mammary smooth muscle through Gq-mediated calcium signaling pathways. It is a critical neuropeptide for studying hormonal feedback and stress adaptation mechanisms.

Behavioral and Social Neuroscience
Oxytocin’s central release modulates social interaction, empathy, trust, and emotional processing. Research implicates the oxytocinergic system in attachment, parenting behavior, and neuropsychiatric disorders, including anxiety, autism spectrum disorder, and depression.

Cardiovascular and Metabolic Effects
Beyond its endocrine functions, Oxytocin has been shown to influence glucose metabolism, lipid mobilization, and vasodilation. Preclinical findings suggest a role in cardiometabolic regulation and tissue repair.

Stress and HPA Axis Regulation
Experimental studies indicate Oxytocin attenuates stress-induced activation of the hypothalamic–pituitary–adrenal (HPA) axis, decreasing cortisol secretion and promoting anxiolytic effects.

Pharmacokinetics
Oxytocin has a plasma half-life of approximately 3–5 minutes and is rapidly degraded by oxytocinase. It is commonly used in both central and peripheral research models to investigate receptor-mediated signaling and behavioral outcomes.

Oxytocin peptide is available for research and laboratory purposes only. Not for human consumption.

References

du Vigneaud V, et al. The synthesis of an octapeptide amide with the hormonal activity of oxytocin. J Am Chem Soc. 1953;75(19):4879–4880. https://pubmed.ncbi.nlm.nih.gov/13099689/
Gimpl G, Fahrenholz F. The oxytocin receptor system: structure, function, and regulation. Physiol Rev. 2001;81(2):629–683. https://pubmed.ncbi.nlm.nih.gov/11274341/
Insel TR. The challenge of translation in social neuroscience: a review of oxytocin, vasopressin, and affiliative behavior. Neuron. 2010;65(6):768–779. https://pubmed.ncbi.nlm.nih.gov/20346754/
Carter CS. Oxytocin pathways and the evolution of human behavior. Annu Rev Psychol. 2014;65:17–39. https://pubmed.ncbi.nlm.nih.gov/24050183/
Heinrichs M, et al. Neuroendocrine mechanisms of stress and oxytocin. Biol Psychiatry. 2009;65(9):774–782. https://pubmed.ncbi.nlm.nih.gov/19091303/
Neumann ID, et al. Central oxytocin mechanisms in stress and anxiety. Prog Brain Res. 2008;170:143–159. https://pubmed.ncbi.nlm.nih.gov/18655882/
Lee HJ, et al. Oxytocin receptor signaling in social and emotional behavior. Prog Neurobiol. 2009;88(2):127–151. https://pubmed.ncbi.nlm.nih.gov/19482229/
Leng G, Sabatier N. Measuring oxytocin and vasopressin: bioassays and immunoassays. J Neuroendocrinol. 2016;28(4). https://pubmed.ncbi.nlm.nih.gov/26768154/
Meyer-Lindenberg A, et al. Oxytocin and human social behavior. Science. 2011;333(6039):1148–1151. https://pubmed.ncbi.nlm.nih.gov/21868668/
Peters S, et al. Oxytocin and the stress response system. Front Neuroendocrinol. 2018;51:14–30. https://pubmed.ncbi.nlm.nih.gov/29414646/

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Every vial we sell comes from a lab that follows current Good Manufacturing Practices (cGMP). That means each step of production is documented and controlled. Before a batch is released, it’s tested by independent third-party labs for purity, identity, and sterility. Certificates of analysis are available so you can see the exact test results.

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Peptides in lyophilized (freeze-dried) form are stable at room temperature for transport. Once you receive them, refrigeration is recommended to maintain long-term integrity. We package every order securely to prevent damage and ship promptly, so your vials arrive in optimal condition.

We operate under strict in-house protocols that follow current Good Manufacturing Practices (cGMP). That means our team oversees the entire process from sourcing raw amino acids to the final lyophilized vial. Nothing is outsourced or repackaged. This gives us full control over purity, consistency, and sterility, and it’s why we can stand behind every single vial we ship.

Store them in the refrigerator, away from direct light and heat. If you need to keep them longer, some peptides can be stored frozen. Each vial comes with clear handling instructions so you know the proper conditions for stability.

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Oxytocin

Oxytocin

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