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Oxytocin (10mg) with a sprayer



10mg – non-lyophilized


Glass Vial


Fine Powder

Add'l Information


In Stock

Imported Non-Lyophilized Peptides:

Offered as a dry powder, these peptides, while not as extensively processed as lyophilized peptides, still maintain a high level of purity. Their stability, though not as enhanced as in lyophilized form, is sufficient for maintaining quality under proper storage conditions.

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Oxytocin Peptide Information

Molecular formula: C43H66N12O12S2
Molecular weight:
1007.2 g/mol
PubChem CID:
  • 50-56-6
  • Pitocin
  • Endopituitrina
  • Ocytocin
Research Applications:
  • Cardiovascular Protection
  • Metabolic Health
  • Sexual and Reproductive Function

What is Oxytocin?

Oxytocin is a peptide hormone and neuropeptide. It consists of nine amino acids and is synthesized in the hypothalamus, a region of the brain involved in regulating many physiological functions.  Oxytocin is then stored and released from the posterior pituitary gland.  Beyond the hypothalamus, oxytocin is also produced in other tissues,  including the ovaries and testes.

How Does Oxytocin Work?

At the molecular level, oxytocin binds to oxytocin receptors, which are G-protein coupled receptors located throughout the body and brain. This binding initiates a series of intracellular reactions that can influence cell signaling and neurotransmitter release. In the brain, this action primarily affects areas involved in emotional, cognitive, and social behaviors [R, R].

One of the key actions of oxytocin is its ability to modulate neurotransmission, which is the process by which nerve cells communicate with each other. By affecting neurotransmitter release, oxytocin can alter the strength and dynamics of neuronal networks. This modulation plays a significant role in behaviors related to trust, empathy, and social bonding [R].

Oxytocin’s impact extends beyond the central nervous system. It also has physiological roles, such as influencing cardiovascular functions and stress responses. It does this by interacting with other hormonal systems and affecting peripheral organs [R].

Oxytocin and Cardiovascular Protection

Research has shown that oxytocin can directly act on the heart by reducing myocardial infarction (heart attack) size, lowering the incidence of arrhythmias (irregular heartbeats), and improving overall cardiac performance during certain high-stress conditions like myocardial ischemia (reduced blood flow to the heart) [R, R].

Oxytocin influences the autonomic nervous system, which controls heart rate and the strength of heart contractions. It promotes parasympathetic responses—that is, it supports the “rest and digest” state over the “fight or flight” response, leading to more stable cardiovascular function [R, R].

Oxytocin contributes to the regulation of endothelial function and arterial pressure. By improving the elasticity of blood vessels and promoting vasodilation (widening of blood vessels), it helps in maintaining a healthy blood flow and pressure. Inflammation is a key contributor to cardiovascular diseases such as atherosclerosis. Oxytocin exhibits anti-inflammatory properties, which can help in reducing the risk of such conditions [R].

Oxytocin is known to mitigate stress responses, which can lower blood pressure and reduce heart rate variability. This stress-reducing effect helps in preventing long-term stress-related wear and tear on the cardiovascular system [R, R].

Oxytocin and Metabolic Health

Long-acting oxytocin analogs have demonstrated antidiabetic and antiobesity effects in diet-induced obese mice. Treatment resulted in enhanced weight loss, improved glycemic control and lipid profiles, and favorable gene expression changes related to lipolysis and gluconeogenesis. Oxytocin supplementation also stimulated the secretion of insulin and other metabolic hormones in mice [R].

Sexual and Reproductive Function

Oxytocin appears to facilitate sexual behavior in both males and females when present, likely acting through neural circuits. In males, oxytocin influences penile reflexes and ejaculation through its actions on neurons in the spinal cord [R, R]

Oxytocin also has effects in the testes and on sperm. Oxytocin and its receptors are found in the male reproductive tract. While the specific functions are still being uncovered, there is evidence oxytocin may influence testicular function, sperm motility and fertility [R, R].

Oxytocin has also been implicated in pair-bonding, social behavior, and stress reduction. These behavioral effects likely facilitate sexual interactions and reproduction. Intranasal Oxytocin spray is being explored as a potential treatment for sexual dysfunctions in men and women, although results so far have been mixed [R, R].


What are the Researched Benefits of Oxytocin?

A summary of the potential benefits of Oxytocin that have been studied in a growing body of research:

  • Oxytocin works to suppress anxiety, reduce stress, and influence psychosocial behavior and reproductive functions [R].
  • Oxytocin helps maintain homeostasis, adapt to changing environments (allostasis), and recover from stressful stimuli through active coping (resilience) [R].
  • Emotional support animals may increase oxytocin levels in adults with serious mental illness, potentially contributing to reductions in anxiety, depression, and loneliness [R].
  • In obesity treatment, oxytocin administered intranasally may decrease energy-induced and reward-induced eating, support cognitive control of food choices, and improve glucose homeostasis [R].
  • Oxytocin plays a role in male sexual function, including inducing penile erection, increasing sexual desire, and potentially influencing premature ejaculation [R].
  • Oxytocin acts in the brain to promote parental behavior by making newborns more attractive or rewarding, reducing stress and anxiety, and improving mood and well-being [R].
  • Intranasal oxytocin administration modulates social reward processing in humans, particularly during the “liking” phase of reward consumption, by influencing activity in brain regions such as the prefrontal cortex, insula, and amygdala [R].
  • Oxytocin may have therapeutic potential for improving the psychopathology of patients with schizophrenia, given its role in social cognition and behavior [R].

Why is Oxytocin Referred to as the “Love Hormone”?

Oxytocin earns the nickname “love hormone” due to its well-documented association with several physiological and behavioral processes that contribute to social bonding and positive reinforcement in mammalian species, including humans.

What Does Oxytocin Do Emotionally?

Oxytocin modulates emotional and social behaviors across species. It demonstrably potentiates activity in brain regions involved in reward processing and emotional regulation, such as the amygdala and putamen, in response to emotional stimuli like faces [R].

What Other Peptides Offer Potential Benefits for Sexual Health?

Some other research peptides studied for their benefits to sexual health include PT-141, Kisspeptin-10 and CJC-1295 No DAC.

Where to Buy Oxytocin

Oxytocin can be purchased online from reputable biotech suppliers such as Limitless Biotech. Limitless offers a wide selection of USA-made peptides for sale online for scientific research and development purposes.

Our extensive range of products undergoes rigorous third-party testing to verify the sequential signatures of all research peptides for sale. With our commitment to quality, most orders are promptly sent out on the same day they are placed, accompanied by our unwavering dedication to providing exceptional customer service.

Legal Disclaimer

This product is sold as a pure compound for research purposes only and is not meant for use as a dietary supplement. Please refer to our terms and conditions prior to purchase.

Safety Information: Keep this product out of the reach of children. This material has limited research available about it and may result in adverse effects if improperly handled or consumed. This product is not a dietary supplement, but a pure substance, sold as a raw material. We attest exclusively to the quality, purity and description of the materials we provide. This product is for use and handling only by persons with the knowledge and equipment to safely handle this material. You agree to indemnify us for any adverse effects that may arise from improper handling and/or consumption of this product.

The articles and information on products that may be found on this website are provided exclusively for the purposes of providing information and education. These items are not pharmaceuticals or medications, and the Food and Drug Administration has not given permission for the treatment or prevention of any disease, medical condition, or ailment using them.

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