+22% bite force in 4 weeks
Resistance chewing, 5 min twice daily
Shirai 2018
4.8 from 2,000+ reviews · 81,000+ satisfied customers
Jaw Toner MOLAR
The same training, built for back-teeth chewers.
Pick your level
45-day risk-free trial
Free shipping over $35 USD
BPA-free silicone
What's included
- Left + right molar trainers
- Carry case
How to use
- Arrows face out, one trainer each side
- Align with your back molars
- Bite the flat side. Same protocol as the 3.0.
Shipping & guarantee
Ships in 24h with tracking. 5–14 days worldwide. Free over $35 USD. 45-day risk-free trial and damage warranty on everything.
Don't take our word for it
4.8 from 2,000+ reviews
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Individual results vary with consistency and body fat.
The fatigue is real. You feel it working the first session.
Liam T. · Verified buyer
I went from starter to Advanced in 9 weeks.
Marcus D. · Verified buyer
45-day trial made it easy
Ryan P. · Verified buyer
Bought it for my boyfriend. He hasn't put it down.
Kelly M. · Verified buyer
Jaw feels way more defined after two months.
Daniel K. · Verified buyer
Didn't expect much. My chin looks sharper now.
Priya S. · Verified buyer
Better than mewing. This actually gives resistance.
Tom H. · Verified buyer
My double chin has noticeably shrunk.
Aaron W. · Verified buyer
Ten minutes while I answer emails. Too easy.
Sofia R. · Verified buyer
Build quality is solid. No wear after months.
James P. · Verified buyer
People asked if I lost weight. It's the jawline.
Mia L. · Verified buyer
Wish I'd started this years ago.
Ethan C. · Verified buyer
The levels let me progress like the gym.
Noah B. · Verified buyer
Comfortable once you get the bite right.
Grace T. · Verified buyer
Genuinely feel the burn by rep 20.
Lucas M. · Verified buyer
Bought the kit, use the gum on rest days.
Olivia F. · Verified buyer
The community
Join the Jaw Toners community
Real people, real training. Tag @jawtoners to get featured.
“the gum is my favorite”
@Vmogsu
“"My cheekbones have started to lift and my jaw has been slimming out"”
Chloe W.
@sub5reid
“Genuinely a 100x harder than regular chewing gum”
Jake Shepard
@strt_mame24
“You can feel the whole side of your face working”
Ryan P.
Angelo
@75Xeno
“Be consistent and it's bound to work”
Kevin Johnar
“Makes you mog”
Aaron L.
“Anti-aging genius product”
Erney
target deeper
The molar bite loads the temporalis and deep masseter, the muscles that the 3.0 can't reach. That's why they pair together perfectly.
Back-teeth power
Temple fullness
Fully trainable
What the research says
Thickness you can measure
Masseter grows measurably under load
Kiliaridis 1991
Muscle pulls on bone
Higher masticatory load is associated with denser jawbone in studies
Theory · research ongoing
Nasal breathing support
Mouth breathers show lower masseter activity. Oropharyngeal muscle training halved sleep-apnoea severity across 9 studies.
Spot-training is real for muscle
You can't target fat loss. You can target a muscle.
We make no claims about bone or facial structure outcomes. Muscles adapt to training; the rest varies by individual.
Questions, answered
Does it actually work?
The masseter is a muscle. Give it progressive resistance and it adapts like any other. MOLAR loads it through your back teeth, where your bite is strongest, so you can train hard without putting the load on your front teeth.
How long until I notice something?
Most people feel the workout on day one. Visible changes depend on consistency and body fat, usually weeks not days.
How is MOLAR different from the 3.0?
The 3.0 is bitten with your front teeth. MOLAR is a pair of trainers you bite with your back teeth, one on each side. Same muscle, different angle, and it spreads the load across your molars. Many people use both.
Which resistance should I start with?
New to jaw training? Start on Starter (40 lb · 18 kg). If you chew tough food often, 50 lb or 60 lb will challenge you sooner. The "All 3 levels" set lets you step up like adding plates in the gym.
How do I use it?
Arrows face out, one trainer on each side. Line them up with your back molars and bite the flat side in slow, controlled reps. Same protocol as the 3.0: about 10 minutes, then rest.
How often should I train?
Start with a few minutes a day and build to about 15 minutes. Train every other day while you're new, and take rest days like you would for any muscle. Overtraining shows up as jaw ache, so listen to your body and back off if it's sore.
How long does a Jaw Toner last?
Usually 3 to 6 months, depending on how often you train and how sharp your teeth are. Clean it regularly and use proper form to make it last longer.
How do I clean it?
Rinse it under warm water, scrub gently with mild soap and a soft toothbrush, rinse again and let it air dry. Store it in its case once it's fully dry.
Is it safe for my teeth?
Your molars are built for heavy chewing, and MOLAR spreads the load across them. Bite on the flat side, keep it even on both sides and stop if anything hurts. If you have weak teeth, crowns, gum problems or a history of jaw issues, check with your dentist first.
Can it cause TMJ?
Used correctly and not overdone, a Jaw Toner shouldn't cause jaw problems. Overuse can cause soreness or discomfort, and serious issues like TMJD are very unlikely unless you already have a jaw condition.
If you have TMJ disorder, jaw pain or clicking, check with a professional before using it.
Can I use it with veneers or dentures?
Veneers: usually fine. Ask your dentist if you're unsure.
Dentures: don't use it with removable dentures. MOLAR uses your back teeth, so don't use it if dentures replace your molars. Check with your dentist first.
Is it suitable for children?
No. Jaw Toners are not for children. It can be a choking hazard, and their jaw muscles and bones are still developing.
What is it made from? Any microplastics?
Jaw Toners are made from 100% BPA and phthalate free, food-grade silicone rubber. It's solid rubber, so it doesn't shed microplastics.
When will my order arrive?
Orders ship within 24 hours with tracking. Typical delivery is 5 to 14 days worldwide.
Is my order tracked?
Yes. Every order ships with free tracking. Track your package here.
What if my order gets lost?
You're covered. If your package is lost in transit we'll send a replacement free of charge. Contact us if your tracking hasn't updated in 21 days.
What payment options do you accept?
All major credit and debit cards, plus PayPal, Apple Pay, Google Pay, Shop Pay, Meta Pay and Amazon Pay.
What if it's not for me?
Send it back within 45 days for a full refund. No hoops.