
Feel Calmer.
Sleep Deeper.
Live Better.
Vagal stimulates your vagus nerve to restore calm and improve sleep — naturally, without pills.
Researchers choose our vagus nerve stimulator for its current-controlled precision, which supports consistent and repeatable stimulation parameters across sessions. Combined with customisable protocols via our app, it is designed for both research and personal wellness applications.
Vagally Curious? Test Your Vagal Tone
Our free vagal tone assessment gives you a personalised snapshot of how your nervous system is performing. Two minutes, thirty questions, real insight.
Whether you are a healthcare professional or simply curious about your own health, this assessment can help you understand what your vagus nerve might be telling you.
How much better could you feel?Three Devices. One Goal.
Whether you are just curious or ready to commit, there is a device for where you are right now.
Clinical-grade. EverCharge wireless charging. Bigger battery, bigger screen. Doctor recommended.
Wireless, compact, and rechargeable. No cables, no fuss. Just clip and go.
Entry-level vagus nerve stimulation powered by your phone. The easiest way to start.
Already own a TENS machine? Our patented dual-electrode clip turns it into a tVNS device.
Why Buddy Is the One Most People Choose
The most popular tVNS device we make. 2nd generation vagus nerve stimulation — bigger where it matters, smarter where it counts.

Charge while you stimulate.
Wireless charging creates complete galvanic isolation between mains power and the device on your body. Place Buddy on its pad and your session continues without interruption.

3x the battery. Zero anxiety.
A 540mAh battery delivers over 4 hours of continuous stimulation on a single charge. Run overnight sessions, extended evening wind-downs, or days of short sessions between charges.

See more. Guess less.
A 30% larger OLED screen makes it easier to read session timers, adjust intensity, and navigate protocols at a glance.

Morning coffee to lights out.
Clip on during your commute, at your desk, on the sofa, or in bed. With EverCharge, your bedside table becomes a charging station and your evening session never has to end.
Same current-controlled EverSteady precision. Same Vagal Tones app. New everything else.
Meet Buddy — £349Understanding Your Vagal Nerve
The Nerve Network
The vagus nerve is one of your most important cranial nerves, acting as a major communication pathway between your brain and your body.
Follow the nerve from ear to gut →Your Body's Braking System
As part of the parasympathetic nervous system, the vagus nerve helps your body shift from stress mode into rest and recovery.
How stimulation supports this →Vagal Tone
This refers to the health and activity level of your vagus nerve. Research suggests that better vagal tone is associated with better overall wellbeing.
How good is yours? Take the free test →It Changes Over Time
Vagal tone tends to decline with age and stress. This may contribute to changes in mood, sleep, digestion, and immune function.
See how your age affects your tone →Natural and Modern Approaches
Meditation, exercise, and breathing practices can all support vagal tone. Newer approaches like non-invasive electrical stimulation are adding to the toolkit.
Start getting better, naturally →A Growing Body of Research
Non-invasive vagus nerve stimulation via gentle electrical pulses is the subject of a growing number of studies exploring its potential benefits.
Explore what the research says →Understand the Science
The more you know about your vagus nerve, the better your results.
An interactive scroll-through of the longest nerve in your body. See where it goes, what it does, and why it matters.
Start the journeyLoad new stimulation protocols to your device instantly. Each Tone is precision-tuned for a specific wellness goal.
Browse tonesMost devices use voltage. Ours uses current. The difference determines whether your pulses are precise or unpredictable.
Understand the differenceHow Vagal Fits Into Your Day
From your first breath in the morning to your deepest sleep at night, vagus nerve stimulation supports every phase of your day.
Start your day grounded, not reactive
Morning cortisol is natural, but for many people it tips into anxiety before the day has even begun. A short vagus nerve stimulation session before you leave bed helps your nervous system settle into a calm, alert state rather than a stress response.
to feel noticeably calmer
"I clip it on while I have my morning coffee. By the time I leave for work, I feel like a different person."
-- Sarah M.Stay sharp without the jitters
When your vagus nerve is active, your brain gets better blood flow and your heart rate variability improves. That means clearer thinking, longer attention spans, and fewer moments of losing your train of thought mid-task.
deep work block
"I used to lose focus after an hour. Now I get deep work blocks of three hours without even noticing."
-- James T., software engineerRecover from the morning, digest your lunch
The vagus nerve directly controls digestion. Stimulating it during your lunch break helps your body shift from "fight or flight" into "rest and digest" -- so your food is processed properly and the afternoon slump hits less hard.
during or after lunch
"The post-lunch crash used to wipe me out. Since using Vagal at lunchtime, I actually have energy for the afternoon."
-- Rachel K., teacherSwitch off properly for the first time in years
Most people carry their work stress into the evening without realising it. Their heart rate stays elevated, their jaw is clenched, their mind races. Vagal stimulation in the evening trains your body to actually downshift -- not just collapse on the sofa.
from alert to genuinely calm
"My partner noticed before I did. She said I seemed calmer in the evenings. Less snappy. More present."
-- David L.Fall asleep faster. Stay asleep longer.
Poor vagal tone is one of the most overlooked causes of insomnia. When your vagus nerve is underactive, your body cannot fully enter the parasympathetic state needed for deep, restorative sleep. Stimulation before bed primes your nervous system for the rest it needs.
20 minutes before bed
"I went from lying awake for an hour to being out in 15 minutes. My sleep score on my watch has gone through the roof."
-- Mark P.Load a Tone. Change Your Session.
Each Tone is a precision stimulation protocol tuned for a specific goal. Buy once, load in seconds, use forever.
Fits Your Life, Not the Other Way Around
Whether you are managing daily stress, looking for better focus, or simply want to support your nervous system, our devices are designed to fit into your routine. Customise your sessions, choose your settings, and use it on your own terms.
Find your device
What Our Users Say
Named, verified reviews from Vagal device owners
Sleeping better than I have in years. I was sceptical but after two weeks of daily sessions, the difference in my sleep quality is undeniable. Worth every penny.
As a nurse, I was curious about vagus nerve stimulation but did not want to invest hundreds first. This clip let me experience the benefits for practically nothing. Game changer for my stress levels.
The Oh! is so easy to use. No cables, no fuss. I clip it on during my morning coffee and it has become part of my daily routine. My digestion has improved noticeably.
Vagally Speaking
Claude Can Now Control Your Vagal Buddy: How We Built AI-Assisted Stimulation Using the BLE Bridge
You can now connect your Vagal Buddy to Claude over Bluetooth and control your stimulation through conversation. No app, no script -- just tell the AI what you want. Here's how the BLE Bridge works, why we built it, and what it means for tVNS research.
Read more
Understanding tVNS Waveforms: What the Research Actually Says About Symmetric, Alternating, Asymmetric and Monophasic Stimulation
A technical look at the four stimulation waveforms available in modern tVNS devices, what each one does at the nerve, and what the published research says about their advantages and tradeoffs.
Read moreHow do we compare?
We use current-controlled tVNS. Most competitors use voltage-controlled tENS. That's not marketing — it's engineering. See the difference for yourself.
