About Cefaly

By HighYa Research Team
Published on: May 12, 2015

With more than 100,000 devices currently in use, Cefaly is a prescription-only, FDA approved medical device that uses transcutaneous supraorbital nerve stimulation (tSNS) to help users reduce the number of migraines they experience.

According to the product’s website, most migraines originate from the trigeminal nerve, which exits the eye socket just underneath the skin of the forehead. As such, Cefaly is claimed to generate “precise micro-impulses in order to stimulate the nerve endings of the trigeminal nerve,” ultimately producing a sedative effect. And with regular use, this sedative effect can reduce the number of migraine attacks.

With this in mind, Cefaly is claimed to work over 6 steps:

  1. Use soap and water to cleanse the skin on your forehead.
  2. While looking in the mirror, place the electrode in the correct position.
  3. Place the Cefaly device on your forehead and lower into position. You should feel it engage with the pin on the electrode.
  4. Press the start button, which will beep once the session begins.
  5. Adjust the intensity and tingling to a level that’s comfortable.
  6. After your 20-minute session has ended, detach from the pin and remove your Cefaly device.

Cefaly’s manufacturer claims that, among regular users, the device has an 81% satisfaction rating, with 77% experiencing a decrease in migraines and a 75% decrease in the use of related medications. Despite this, Cefaly is claimed to be gentle and “exceptionally safe.”

Whether your migraines are moderate or severe, and whether you experience them once per month or daily, you just want them to stop. But does Cefaly provide a legitimate method that can help you accomplish this? Consider the following:

What is Transcutaneous Supraorbital Nerve Stimulation (tSNS)?

It sure is a mouthful, right? As it turns out, this phrase was invented by Cefaly’s manufacturer, so let’s break it down word-by-word:

  • Transcutaneous: “Passing, entering, or made by penetration through the skin.”
  • Supraorbital: “The region immediately above the eye sockets, where in humans the eyebrows are located.”
  • Nerve Stimulation: “The use of electric current produced by a device to stimulate the nerves for therapeutic purposes.”

In essence, although it sounds really science-y, tSNS is simply stimulating the trigeminal nerve using electrical currents applied to the skin of the forehead.

Is There Clinical Evidence Showing Cefaly Works?

Overall, three studies are listed on the Cefaly website:

A 2013 study published in The Journal of Headache and Pain that found, “After a testing period of 58.2 days on average, 46.6% of the 2,313 [patients] were not satisfied and returned the device, but the compliance check showed that they used it only for 48.6% of the recommended time. The remaining 54.4% of subjects were satisfied with the tSNS treatment and willing to purchase the device.”

Another 2013 study showing that approximately 50% of patients achieved some kind of relief from migraines using the Cefaly device for 20 minutes per day for 3 months, and a 2011 study showing that Cefaly might help induce a sedative effect (sleepiness). However, it was noted “Additional studies are needed to determine the duration of this effect, the underlying mechanisms and the possible relation with the stimulation parameters. Meanwhile, this effect opens interesting perspectives for the treatment of hyperarousal states and, possibly, insomnia.”

What Does “FDA Approved” Mean?

According to the FDA, “approved” means that a premarket approval (PMA) application has been submitted to FDA, and that the device has been shown to be safe and effective. However, for a low to moderate-risk device such as Cefaly, this might only entail that it is “substantially equivalent to an already legally marketed device of the same type.”

Cefaly Side Effects

According to The Journal of Headache and Pain study noted above, common Cefaly side effects included pain/intolerance, arousal changes (sleepiness/fatigue/insomnia), and headache. With this said, it was reported that only 4.3% of patients experienced any of these, and they were always mild.

According to a disclaimer on the Cefaly website though:

The sensation produced by Cefaly is strange and unusual, but most people get used to it quickly after a few sessions. However some people are more sensitive and may find the sensation produced by Cefaly painful. If this is the case for you, simply press the button during the session when the sensation becomes slightly uncomfortable to limit its intensity. Only 1.25% of patients cannot stand the sensation produced by Cefaly and therefore are unable to carry out the treatment correctly.

Migraine Sufferers Talk About Cefaly


Migraine.com hosted an in-depth Cefaly review, where the author noted that it feels like “someone is pushing the heel of their hand hard into my forehead,” although they frequently found that the device was too painful to use, even in the lowest setting. In fact, they even noted, “The dozen real-life migraineurs I know of who have tried it describe the sensation as either bearably uncomfortable or too painful to use.”

Despite the manufacturer’s claims, the author also noted that they were unable to do anything other than lie down during their treatment sessions, as even the slightest movement would disengage Cefaly from the electrode, and they would have to start all over again.

Ultimately, they concluded, “Cefaly is unlikely to be the slam-dunk treatment we’d all love to have, but it could be a powerful tool in your migraine toolbox. Trying it is the only way to find out if you can stand the sensation and if it will be effective for you,” as long as it’s within your budget.


Out of 50 customer reviews on Costco.ca, Cefaly had an average rating of about 4.5 stars, with 86% of customers claiming they would recommend it to a friend. There, common compliments referenced improved migraine frequency/severity and decreased use of medications.

On the other hand, common complaints referenced failure to work (one user even claimed it made their headaches worse), and uncomfortable sensations during treatment (e.g. intense pressure, “pins and needles,” etc.).


Similarly, Cefaly had a 4.6-star rating on Amazon, with many of the same compliments and complaints noted above.

From a company perspective, Cefaly Technology is based out of Belgium, although their US operations are based out of Darien, CT. In either instance though, the company is not listed with the Better Business Bureau, although they appear to have been in business since 2008.

Cefaly Pricing & Refund Policy

Cefaly is only available through the manufacturer (prescription required) and is priced at $349.

With your order, you’ll also need to purchase a set of 3 electrodes for $25. According to the manufacturer, as long as you clean your forehead before each session, each electrode can be used up to 20 times.

Important note: As of this writing, Cefaly was not covered by medical insurance.

All Cefaly devices come with a 60-day refund policy and a 2-year warranty against defects in workmanship. In order to request a refund or process a warranty claim, you’ll need to contact customer service at (203) 309-5670.

Will Cefaly Help Reduce Your Migraine Headaches?

Chopping to the point: Like any other medical treatment (whether for migraines or any other condition), what works for you may not work for someone else, and vice-versa.

As such, even though it appears that the majority of migraine sufferers appeared to have experienced some sort of relief using Cefaly, this doesn’t necessarily mean you’ll experience the same. However, all things being equal, it appears that you’re much more likely (more than twice) to achieve positive results if you use Cefaly regularly and as recommended.

With all of this said, if you suffer from migraine headaches, you’ll almost certainly go to the ends of the Earth in order to make them stop. As such, Cefaly might represent a legitimate option to help you get there.

However, Cefaly isn’t cheap and isn’t currently covered by insurance, so you’ll definitely want to speak with your physician before making the plunge.

Read 3 Cefaly Customer Reviews and Complaints

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Average Customer Rating: 3.3
Rating Snapshot:
5 star: 1 4 star: 1 3 star: 0 2 star: 0 1 star:  1
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  • Updated review


    • Portland, OR,
    • Nov 15, 2019
    • Verified Reviewer

    I had some difficulty with the Cefaly to begin with and the company was quick to respond with ways to improve my use.

    The electrodes should be kept in the refrigerator and in their envelope to stay moist enough to use.

    I also take time out of my day to relax while I am using the device - it's a good time to meditate, which really helps with the Cefaly!

    This device does decrease my headaches and gives me relief from a headache either coming on or in the middle.

    So far, the device is worth the hassle of figuring out how to use it. I was having chronic migraines and now they have dropped back in frequency, intensity, and duration.

    Bottom Line: Yes, I would recommend this to a friend

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    • Previous review
    • Nov 7, 2019

    Cefaly efficacy

    I purchased the dual device and began using it on the prevention mode. It relieved the tension in my face and neck. When I did have a migraine (I have chronic migraines right now), I used it for 60 minutes. This was less than 3 days after receiving the device.

    The electrode fell off - it's supposed to last 20 days.

    Then the device itself began to fall off.

    I do want to qualify that this device does reduce the migraine for me and helps with my daily prevention efforts. However, it is very expensive, the electrodes are expensive to replace. The device falls off. The electrodes only last 4 days and cost 10 dollars apiece.

    I am probably going to ask for a refund but first I am talking to the company because it does help the migraine. It falls off because the product itself falls apart.

    (read moreread less...)

  • Cefaly

    • Washington,
    • Sep 30, 2019
    • Verified Reviewer

    I have never written a review. Our daughter used Cefaly 3 times, over 3 days. She had a red line form around both eyes after each use. I would attach a pic if there was a way to do that on here. We contacted the company and they got back to us a week later. They offered no insight. Her headache is worse; it is more intense and all day after the 3 uses. Our experience was that this device did more harm and set our daughter's recovery back. It works for many people, but in our daughter, it made her condition worse.

    Bottom Line: No, I would not recommend this to a friend

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  • 9 out 10 people found this review helpful

    Life changing

    • Melbourne, Victoria, Australia,
    • Feb 14, 2018
    • Verified Reviewer

    I used to live with severe migraines about 3-4 times a month. I would have migraines with aura before the migraine pain. It was so debilitating that I would be unable to move or cry out due to the visual disturbances and severe dizziness. I’d also experience severe nausea and vomiting. On top of migraines, I would have chronic headaches. When I tried taking pain medication, I would usually throw it up. When I could keep it down, it did nothing. No relief. I would have my husband drive me to the doctors for a pain relief shot, and that still wouldn’t help.

    One day my Mum was watching TV and saw a segment on the Cefaly. At the time I was in bed with a migraine and she was kind enough to order me one. My life changed from that day.

    For the first two weeks, I found the Cefaly extremely painful and thought I wouldn’t be able to tolerate it. But lucky I got used to it. Now it just feels like a tingling sensation with light pressure.

    I wear the Cefaly on the preventative setting 6 nights a week for between 20 minutes to one hour depending on how much time I have. I usually watch TV while it’s on.

    Now I get only one or two migraines a YEAR! I’ve come off all my preventative medication. My daily headaches are no more. I get a headache maybe once a fortnight, which is easily treated with codeine tablets.

    I feel like a new person. I now live a normal life. It felt so good coming off my preventative medication. Give a Cefaly a try. Hopefully, it works for you as well as it’s worked for me.

    Bottom Line: Yes, I would recommend this to a friend

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