FUNCTIONAL ACTIVATOR

263 Reviews

YOUR POSTURE STARTS IN YOUR MOUTH.

The Functional Activator stands alone as the only active device that trains your mouth, jaw, tongue, and facial muscles as you wear it.

Tongue PostureNasal BreathingJaw and Neck Tension

Most mouthguards protect teeth.

This trains the muscles behind the jaw.

Where the tongue rests is where tongue posture, breathing, jaw position, and whole body alignment all begin.

WHY THE FUNCTIONAL ACTIVATOR IS DIFFERENT

Not all mouthguards are created equal.

REGULAR MOUTHGUARD
RIGID MOUTHGUARD
FUNCTIONAL ACTIVATOR

REGULAR MOUTHGUARD

RIGID MOUTHGUARD

FUNCTIONAL ACTIVATOR

Main Purpose
Protects teeth
Protects teeth from grinding
Trains tongue and jaw position
Tongue Posture
Not addressed
Not addressed
Holds tongue to the palate
Nasal Breathing
Not supported
Not supported
Trains nasal breathing
Jaw Position
Passive fit
Can lock the bite
Neutralizes jaw position
Posture Connection
Not designed for posture
Not designed for posture
Aligns jaw, neck, and posture
Best For
Tooth protection
Heavy grinding protection
Tongue, breathing, jaw, posture

FUNCTIONAL ACTIVATOR

  • Main Purpose Trains tongue and jaw position
  • Tongue Posture Holds tongue to the palate
  • Nasal Breathing Trains nasal breathing
  • Jaw Position Neutralizes jaw position
  • Posture Connection Aligns jaw, neck, and posture
  • Best For Tongue, breathing, jaw, posture

REGULAR MOUTHGUARD

  • Main Purpose Protects teeth
  • Tongue Posture Not addressed
  • Nasal Breathing Not supported
  • Jaw Position Passive fit
  • Posture Connection Not designed for posture
  • Best For Tooth protection

RIGID MOUTHGUARD

  • Main Purpose Protects teeth from grinding
  • Tongue Posture Not addressed
  • Nasal Breathing Not supported
  • Jaw Position Can lock the bite
  • Posture Connection Not designed for posture
  • Best For Heavy grinding protection

The Functional Activator is not just a mouthguard.

It works as a daytime mewing alternative, training the tongue, jaw, breathing and posture.

See how the Functional Activator works

By training the tongue to find its proper resting position, the Functional Activator helps support jaw alignment, nasal breathing, and whole body balance.

FUNCTIONAL ACTIVATOR

  1. START WITH SHORT DAYTIME WEAR

    Start by wearing the Functional Activator a few minutes at a time, while you watch TV, work, walk, or train.

  2. SQUEEZE AND PLACE IT IN YOUR MOUTH

    Give the device a gentle squeeze, place it in your mouth, and let it settle naturally between your teeth.

  3. CLOSE YOUR TEETH AROUND IT

    Check that your upper and lower teeth both make contact with the device. Because the Functional Activator is active, your mouth, jaw, tongue, and facial muscles all have to engage with it.

  4. KEEP YOUR LIPS CLOSED

    With the device in place, close your mouth and keep your lips sealed. Finding this difficult at first may indicate weakness in the muscles around the mouth, particularly the buccinator, a muscle often involved in mouth breathing patterns.

  5. BUILD TOLERANCE GRADUALLY

    Use it in short sessions through the day and build up gradually. As your mouth and facial muscles adapt, wearing it in 15 minute intervals is a good goal.

  6. BUILD UP YOUR DAILY WEAR TIME

    The end goal is longer, comfortable daytime wear, giving the tongue, jaw, lips, and breathing pattern consistent training throughout the day.

Functional Activator

The first few sessions can feel unusual. That is entirely normal. Begin slowly, keep the lips closed, and give the mouth, tongue, jaw, and cheek muscles time to adapt.

Functional Activator

Functional Activator

263 Reviews
€279,00€329,00Save €50
Size
  • Without Bisphenol, Phthalate, Endocrine Disrupters, And PVC
  • Does Not Require Boiling Or Moulding
  • Designed To Promote Nasal Breathing And Proper Tongue Posture
Free Shipping Secure Checkout 30% Off Vivobarefoot Shoes

BUNDLE & SAVE

Fix My Posture Bundle

€675

Functional Activator

Frequently Asked Questions

Using dental floss, measure from molar to molar, then hold the floss against a ruler.

  • Under 33mm = Small
  • 34-37mm = Medium
  • Over 38mm = Large

The Functional Activator reveals bite imbalances that were already present. If your jaw closes unevenly, for instance one back molar touching before the other, that asymmetry becomes more noticeable during wear. You are not creating a problem; you are feeling one that had been hidden.

This is genuinely useful information: it shows you where your jaw is compensating. For most people the soreness eases within 1 to 2 weeks as the tongue repositions and jaw tension releases.

If soreness persists in one specific spot: You may have a significant bite asymmetry worth addressing with a practitioner.

Your mouth has adapted to incorrect tongue posture, possibly over decades. The Functional Activator places your tongue where it belongs, which can feel unfamiliar at first.

Begin with 5 minutes during the day and build up gradually. Most people adapt within 1 to 2 weeks.

Trim if needed: Use scissors to remove 1mm from any edge pressing into your gums. Keep the wave shape intact.

That is by design. The Functional Activator is deliberately wider than your jaw, and its flexible material adapts to your mouth.

How to insert:

  • Squeeze the sides together with your thumb and index finger
  • While still squeezing, set your upper and lower teeth into the gutters
  • Bite down gently to find your position
  • Release your fingers. The activator expands to fit your jaw width

It should feel snug rather than forced. Once you release, the width adjusts itself.

Begin with 5 minutes during the day. Your mouth has adapted to incorrect tongue posture, possibly over decades, so the correct position feels unfamiliar to begin with.

If the edges press into your gums: Trim 1mm at a time with scissors. Keep the wave shape intact.

Most people adapt within 1 to 2 weeks.

Customer Reviews

4.8 Based on 10 Reviews
5 ★
90% 
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3 ★
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Filter Reviews:
MP
Malo P.
France France
I recommend this product
02/23/2021

functional activator

génial, depuis que je porte cette gouttière je ressens un mieux être physique. J'ai l'impression d'avoir une posture plus saine. Je la mets principalement pour dormir. Mon sommeil est plus sain aussi. Plus réparateur. Mes performances sportives sont également meilleures.

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JK
Jaap K.
I recommend this product
04/16/2023

Nose breathing

To place this peace of help in the mouth is a joy for your breathing pattern. In rest or activities, training your breath and position of the tongue and jaw. Love the proces.

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A
A.
Canada Canada
I recommend this product
09/27/2023

Indeed breathing better

This is now the second night I've been sleeping with this, and have been waking up completely restored! Even my Oura ring stats are off the charts! Thank you!

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R
R.
Spain Spain
I recommend this product
09/27/2023

Amazing

This is exactly what I was looking for! No more mouth taping needed. Completely breathing threw my noise, and feeling restored when I wake up. My front did hurt for the first few times but was able to get used to it and now doesn't hurt at all.

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K
K
Hong Kong SAR China Hong Kong SAR China
I recommend this product
11/10/2023

Good

Good

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