Guide · Updated August 2026

Vagus nerve stimulation for stress

What the four minutes actually do, what published research on the technique does and doesn't show, and how long before it is worth anything.

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The short answer

The vagus nerve is the main line of the parasympathetic nervous system — the half of the autonomic system that runs rest, digestion and recovery. A stressed body is one where the other half, the sympathetic side, is holding the wheel longer than it needs to.

Stimulating the vagus nerve transcutaneously is a way of nudging that balance back. Published research on the technique reports effects on measures like heart rate variability, which is one of the standard proxies for autonomic balance. Those are findings about the technique, from studies of other devices — not results measured with this one, and this page is not going to blur that line.

What it feels like in practice: a session of about four minutes, a mild tingling at the neck, and for most people a noticeable settling afterwards. What it is not: a treatment for an anxiety disorder, and not a substitute for one.

What the research is about

Findings from published work on the technique, not from this device
Minutes
Published work describes within-session autonomic shifts on the order of minutes
Weeks
Reviews describe cumulative effects building over weeks of repeated use
HRV
Heart rate variability is the measure most often used as a proxy for autonomic balance

These describe the published literature on transcutaneous vagus nerve stimulation in general. They are not claims about Holtrow Pulse, which has not been studied clinically, and they are not a promise of any individual result.

How to actually get value out of it

The habit matters more than the hardware.

01
Same time, most days
The effect people notice is cumulative. A device used twice a week does very little; the same device used most days for six weeks is the version people write in about.
02
Use it before the spike, not during
A session works better as a scheduled reset — after work, before dinner — than as an emergency measure mid-crisis.
03
Hands-free is the whole point
Four minutes you can spend doing something else is a habit that survives. Four minutes standing still holding a device to your neck usually isn't.
04
Don't stack it on nothing
Stimulation is one input. Sleep, daylight, and moving the body are bigger ones, and no device out-performs fixing those.
05
It isn't a treatment
Holtrow Pulse is a wellness device. If stress has tipped into something that is affecting how you live, that is a conversation with a doctor, not a purchase.
06
Six weeks, not one night
The house line, and the reason this page exists. Everyone in this category sells the first session. The first session is the easy part.

Questions people actually ask

What does a session feel like?

A mild tingling or fluttering at the side of the neck, adjustable in intensity. It should never be painful. Most people describe a settling in the minutes afterwards rather than during.

How often should it be used?

Once or twice a day, about four minutes each time. Consistency does more than duration — most days for six weeks beats long sessions twice a week.

Does it help with anxiety?

Holtrow Pulse is a wellness device and is not intended to diagnose or treat any condition, including anxiety disorders. Published research on vagus nerve stimulation as a technique is a separate matter from what any uncleared consumer device can claim, and we are not going to conflate the two.

Is it safe?

It is non-invasive and low-frequency, but it should not be used during pregnancy, or by anyone with epilepsy, a pacemaker or another implanted electronic device, or a heart condition, without speaking to a doctor first.

Can I use it at work?

Yes. It is hands-free and silent, and the remote means the phone can stay in a drawer.

What if nothing changes?

Thirty nights, then a full refund. That window exists because six weeks is the honest timeline and thirty days is enough to know whether you will keep the habit.

Keep reading

How long vagus nerve stimulation takes to workWhat HRV actually tells youHow to stimulate the vagus nerve — device or notVagus nerve stimulation for sleepVagus nerve stimulators under $100Holtrow Pulse — full specification

Four minutes, most days, for six weeks.

That's the honest version of the instructions. $99.90, gel in the box.

Holtrow Pulse is a non-invasive wellness device, not a medical device. It is not FDA-cleared and is not intended to diagnose, treat, cure or prevent any disease. Do not use it if you are pregnant, or have epilepsy, a pacemaker or other implanted electronic device, or a heart condition — speak to a doctor first. Research findings described on this page come from published studies of vagus nerve stimulation in general; they are not results measured with this device.