All About taVNS
taVNS — transcutaneous auricular vagus nerve stimulation — is the core mechanism behind our product.
By non-invasively stimulating the auricular branch of the ear, BeCozU sends a pulse through the nervous system, promoting parasympathetic activation. Though effects can vary from person to person, taVNS most commonly aids with the mitigation of excessive sympathetic responses and helps relieve tension and anxiety.
Why taVNS
Easy to Use
All you have to do is hook the device around your ear. Start your hassle-free treatment.
Minimal Side Effects
A safe and gentle alternative to surgery, it stimulates the vagus nerve with electrical impulses through the skin, allowing minimal side effects.
Customized Treatment
It enables your doctors to personalize your treatment using the mobile application.
How It Works
(GABA, Serotonin, etc.)
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bedtime
GABA: Promotes sleep and induces calming effects.
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sentiment_calm
Serotonin: Facilitates sleep and helps reduce anxiety.
verified_userSafe at the Cellular Level
For most adults, the minimal electrical current that does not cause a harmful physiological response (perception threshold) is typically below 5 mA. taVNS devices operate within the range of 0.5 to 2 mA, which is considered safe at the cellular level. Furthermore, the penetration depth into tissue is shallow, making it safe for use.
Real-Time Biometric Monitoring
We want people to experience the joy of taVNS — and see the effects in real-time. That's why BeCozU also comes with biometric monitoring.
While taVNS helps you relax through your left ear, a PPG sensor in your right ear keeps track of your heart rate. All of this can be seen in the BeCozU app!
Backed by Research
Peer-reviewed studies on stress, sleep, and recovery.
"Overall, these findings demonstrate a favorable safety profile of taVNS… supporting its use as a suitable non-invasive tool in both research and clinical applications."
— Giraudier et al. (2025), Frontiers in Human Neuroscience.
"…taVNS interventions resulted in reduced stress levels, improved sleep quality, and enhanced perception of stress."
— dos Reis et al. (2024), Frontiers in Psychology.
"The promising results underscore taVNS as a potential neuromodulatory intervention for anxiety-related conditions."
— Ferreira et al. (2024), Frontiers in Integrative Neuroscience.
"Participants in the repeated session protocol increased their HRV, cognitive performance, and sleep efficiency. In particular, taVNS induced higher parasympathetic activation."
— Le Roy et al. (2023), Frontiers in Neurology.
While inspired by taVNS technology, BeCozU is a wellness device and not intended to diagnose, treat, cure, or prevent any disease.