8 Pack Replacement Chew Strips

The masseter is a muscle. Give it progressive resistance and it adapts like any other. We have thousands of customers to vouch for us. The studies in our numbers section are linked on every product page.

Most people feel the workout on day one. Visible changes depend on consistency and body fat, usually weeks not days.

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.

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.

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.

Your teeth are stronger than you think—and we designed around that. Front teeth can handle up to 70 lbs of bite force (our max). But, our design ensures the Jaw Toner spreads the pressure evenly across your jaw, so your teeth aren't taking the full load directly. Add proper form with your lips wrapped and the device centered in your teeth, and you're protected.

Stop if there's pain. If you experience any discomfort while using the Jaw Toner, stop and let the issue resolve before using it again.

Have braces or orthodontic devices? Check with your dentist first. The Jaw Toner isn't compatible with active orthodontic treatment or braces—you'll need clearance before using it.

New to jaw exercise? If you have concerns or a history of jaw issues, check with your orthodontist or dentist before starting.

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.

Veneers: usually fine. Ask your dentist if you're unsure.

Dentures: don't use it with removable dentures. Permanent dentures may be fine depending on which teeth they replace, so check with your dentist first.

No. Jaw Toners are not for children. It can be a choking hazard, and their jaw muscles and bones are still developing.

Jaw Toners are made from 100% BPA and phthalate free, food-grade silicone rubber. It's solid rubber, so it doesn't shed microplastics.

Orders ship within 24 hours with tracking. Typical delivery is 5 to 14 days worldwide.

Yes. Every order ships with free tracking. Track your package here.

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.

All major credit and debit cards, plus PayPal, Apple Pay, Google Pay, Shop Pay, Meta Pay and Amazon Pay.

Send it back within 45 days for a full refund. No hoops.