Vagustim is an innovative technology designed for vagus activation for overall well-being. It offers:🌿 Reduced Stress,💤 Improved Sleep,🌱 Enhanced Gut Health,💪 Speed Recovery,#Vagus
Vagustim (vagustim.io) has 130 customer reviews on Five Star Index, with an average rating of 4.1 out of 5.
Also known as
vagustim.io
Website
vagustim.io
Category
Wellness & Spa
Location
Newark, Delaware
Listed on Five Star Index
2026
About these reviews
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The company replied to 50% of reviews.
Latest
Most recent review: October 2026.
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Reviews are shown as their authors wrote them. The company can reply, but cannot edit them.
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It took a month to resolve a problem with changing the email address in the app - and Vagustim only responded when I threatened to leave negative feedback. It is now 5 months later and I’ve increased the duration in the settings to 30 minutes but it keeps defaulting back to 15 minutes without explanation. Then I find out from other reviews that this has been a known issue for over 2 years. From experience I know there’s no point contacting support so I’m just going straight to the negative review this time. They deserve it.
Response from VagustimOct 18, 2026
Thank you for sharing your feedback. We would like to clarify the session duration point, as this may also be helpful for others reading your review. The 30 minute duration selected under Adjust applies to sessions started through Adjust. AI Session Type currently uses its own 15 minute session duration. So if 30 minutes is selected under Adjust and an AI Session is then started, the AI Session will still run for 15 minutes. The 30 minute setting itself is not being reset, and 30 minute sessions remain available when started through Adjust. Regarding the earlier email issue, the account difficulty was related to different email addresses being used when signing in, which created an account matching issue rather than a problem with Vagustim itself. Thank you again for the feedback and for giving us the opportunity to clarify both points.
MA
Matthew and D.
I have not heard back in weeks!
Why won’t it let me reply to their reply? Their team is NOT working closely with me to solve the problem! I requested a refund and I haven’t heard from them in weeks.
UPDATE: They told me they were sending ANOTHER replacement and I said I didn’t want a third device that may have the same issues. I told them I do not trust the brand or device. I told them I wanted a refund. They sent it any way. It looks so different from the other two devices that were sent. This makes me really nervous. It is heavier , the materials used are different and look more expensive- however, I was told the earbuds that came with my original device would work with the new one but they do not work with this device. The middle LED light will not stop flashing no matter how much I lube the earbuds or try to reposition them. So the newest device they have sent still doesn’t work!
The company currently promotes improvements in stress, sleep, focus and wellbeing, alongside a claim of support from more than 50 scientific studies. (This whole process has caused me so much stress, all for a device that is supposed to help with stress.) Its publications page, however, mixes clinical research with books, reviews, case reports and animal experiments. That is not equivalent to 50 successful clinical trials of the exact product and programmes a customer receives.
I confirmed at least one Vagustim-device study, while some cited trials report negative or nonsignificant results. Some cited papers do not identify Vagustim as the device tested, so they cannot be assumed to validate the retail product specifically.
Throughout this process, responses to my emails have taken weeks—and sometimes months. At the time of writing, I have again heard nothing from support for several weeks. The website chat I encountered was a bot, and I have struggled to reach a person who will actually resolve the problem and when you call the number you just get a voicemail telling you to email support. Vagustim had told me that I am outside their refund timeframe. However, their own response times—weeks and sometimes months—have prolonged this process. I have spent that time trying to get a functioning product and, after repeated problems, seeking a refund. I specifically requested my money back rather than another replacement, yet they sent a third device anyway. I do not consider it fair to use the elapsed time as a reason to refuse my refund when their delayed responses and unsuccessful replacement attempts have contributed to that time passing. I should not be penalised for the time I have spent waiting for them to respond and resolve problems with the products they supplied.
Sending more devices is not a satisfactory solution when they remain unusable and the customer has clearly requested their money back. For a $1,900 purchase, I expected a functioning product and timely, effective customer support. I have received neither.
I would also urge prospective buyers to look carefully at the scientific evidence rather than rely on marketing or enthusiastic testimonials. Some research does involve Vagustim, so it would be inaccurate to say there is no research behind it. However, the company’s publications page also includes reviews, animal experiments and small exploratory studies—not simply a collection of successful clinical trials proving the benefits of the exact consumer device being sold. Buyers should ask which studies tested their particular model, settings and intended benefit.
The results are not uniformly positive, either. For example, one study linked by the company reported improvements in certain visual-memory measures but no significant improvement in fatigue. A study being listed as supporting research does not mean it supports every benefit a buyer might expect.
Positive customer reviews are not proof that the device itself caused an improvement. Placebo effects can produce genuine improvements in reported symptoms, and testimonials cannot separate those effects from the device’s specific effects, natural symptom fluctuations or other changes. That does not mean positive reviewers are dishonest, and it does not establish that their results are “just placebo.” It means properly controlled trials—not testimonials—are needed to establish what a device actually does.
I would not purchase from Vagustim again. Before spending this amount of money, look beyond the positive reviews and consider what happens when the product fails. In my case, repeated replacements have not resolved the problem, and my refund request remains outstanding.
AR
Alison R.
The device (Vagustim) is finicky + I couldn't get the refund
The device (Vagustim) is finicky. I had a lot of trouble getting it to work and spent quite a bit of time on it. Sometimes customer service was slow to get back to me. By the time I actually got it working and realized that it wasn't actually helpful for my GI issues, they refused to allow me to return it for a refund.
Response from VagustimAug 30, 2026
Hi Alison,
We carefully reviewed your return request, including your previous support history. Since your return request was received outside our 30 day return window, we were not able to approve the refund.
As we promised, your Vagustim continues to be covered under our 2 year warranty, and we remain committed to supporting you. Please feel free to reach out to us at any time if you need assistance with your Vagustim.
Kind regards,
HM
Holly M.
I tried multiple times to get a hold of…
I tried multiple times to get a hold of this company and they don’t respond. I wanted to return it within my 30 day window for free returns which is usually the case so now I can’t return it, but it is a very cheap product not worth the money and it’s more of a zapping system, and it’s very hard to keep in your ears and doesn’t work most of the time
MR
Meg R.
Where to begin...
Where do I even start? The Vagustim earset is poorly designed and cheaply made. They fit like oversized marbles—constantly falling out of my ears. To make matters worse, the left earbud fell apart after two weeks! I reached out to Vagustim (repeatedly) for a replacement, and what did they send? An earset that would fit a gorilla. I clearly stated that I have normal-small ears. So then they sent me a medium set, which was still way too big. Now I’m told the “small” size is out of stock. Well of course it is! Since that's likely the only size that actually fits most users ears! The refund process? It’s basically impossible to get your money back from this company. Also, the directions on how to "properly and effectively use Vagustim are ridiculously vague. The device can actually leave you feeling more anxious. As a health practitioner working with thousands of clients, I would NEVER recommend Vagustim.
Response from VagustimAug 30, 2026
Hi Meg,
We reviewed your case and can confirm that, under our 30 day money back guarantee, your return was processed according to our return policy and a full refund was issued for your order.
Kind regards,
TA
Tammy
The ear buds were too big for me and…
The ear buds were too big for me and one of them got very hot and caused my ear severe irritation. I sent them photos and many emails explaining these things and they still refused to pay for the return shipping.
Response from VagustimJul 13, 2026
Hi Tammy,
We reviewed your case and can confirm that, under our 30-day money-back guarantee, your return was processed according to our return policy and a full refund was issued for your order.
Our policy states that return shipping is the customer’s responsibility, but we understand your frustration and appreciate you taking the time to share your feedback. Experiences like yours help us identify where we can continue improving the fit, comfort, and overall product experience.
If there is anything else we can help clarify, please feel free to reach out to us at [email protected], and our team will be happy to assist.
Kind regards,
JB
Jaap Bruins S.
Hoped for relief but no chance.
After more than six weeks of daily use, I unfortunately haven’t noticed any improvement.
I’ve been dealing with health issues for over 50 years and had hoped this device would offer at least some relief, but so far there has been no change at all.I plan to continue for a few more months, simply because my system has been stuck for so long, but I’m not expecting any noticeable results at this point.After many years of hospital visits without a clear diagnosis, I will now seek help at an academic medical center.For me personally, the Vagustim has not been a solution.
Response from VagustimJul 1, 2026
Hi Jaap,
We'd be happy to work with you to review your current routine and make sure you're getting the most from your Vagustim. Our support team can help you evaluate the programs you're using, your session duration, intensity, and device setup, and answer any questions you may have.
If you're willing, please reach out to us at [email protected]. We'd be glad to assist you personally.
Kind regards,
SJ
SJ
Headset broke after a few uses
Headset broke after a few uses. Company refused to refund. Poor quality product , with a high price. Do not buy.
Response from VagustimJun 17, 2026
Hi SJ,
If an earset becomes damaged or stops functioning, our standard process is to assess the issue and, when appropriate, provide a replacement earset. We work hard to resolve these situations as quickly as possible so users can continue using their device without interruption.
We would be happy to review your case. Please contact us at [email protected] with your order details and a brief description of the issue. Our support team can quickly assess the situation and, if necessary, arrange a replacement earset.
Kind regards,