Best BJJ Mouthguard (2026) — 5 Mouthguards Tested on the Mats

I did not start wearing a mouthguard until I took an accidental elbow to the mouth during a scramble. Nothing broke, but I felt my front teeth shift slightly on impact and my lip swelled up for a week. That was the wake-up call. A $25 mouthguard is a lot cheaper than a $2,000 dental bill, and I have been wearing one every single training session since.

The problem is that most mouthguards are designed for football or hockey — they are thick, bulky, and make you feel like you are breathing through a straw. BJJ is different. You need to breathe hard during rolls, communicate with your training partner, and ideally drink water between rounds without taking the thing out every time. That narrows the field considerably.

Quick answer: The Gladiator Custom Mouthguard PRO is the best BJJ mouthguard and what I personally wear to every training session. It is lab-made from your dental impression, fits perfectly, and mine has held up for years. If you do not want to wait for a custom guard, the SISU Aero 1.6mm is a good thin boil-and-bite option, though the molding process takes some patience. On a budget, the Shock Doctor Gel Max at $16 is a solid starter.

The Best BJJ Mouthguards — Ranked

1. Gladiator Custom Mouthguard PRO — Best Overall (What I Use)

This is my personal mouthguard — the one sitting in my gym bag right now. You can see from the photo that it is beat up, and that is because I have been using it for years. It still fits perfectly and still snaps into place every single training session. That durability alone puts it at the top of my list.

Gladiator sends you a dental impression kit, you make the mold at home, mail it back, and they fabricate a custom mouthguard in their lab. The result fits your teeth so precisely that it stays locked without any clenching. I can breathe, talk, and drink water with it in — all the benefits of a thin guard with significantly more protection.

The difference between a custom guard and a boil-and-bite is immediately obvious the first time you put it in. There are no thick spots, no gaps, no areas where the material bunches up against your gums. It feels like it was made for your mouth because it literally was. After training with boil-and-bite guards, switching to the Gladiator felt like going from generic insoles to custom orthotics.

They also personalize it with your name, color choice, and logo, and they store your dental impression digitally forever. When your guard eventually wears out, you can reorder a new one — or a fun custom design — without doing the impression process again. That lifetime digital storage is a genuinely great feature.

The drawback: the price ($100 to $160 depending on customization) and the wait time (2 to 3 weeks). If you need a mouthguard tonight, grab a Shock Doctor now and order the Gladiator as your long-term solution. But if you can wait, the upgrade is worth every dollar.

2. SISU Aero 1.6mm — Thinnest Option

I keep a SISU in my bag as a backup. At 1.6mm, it is the thinnest mouthguard you will find. You can talk normally, breathe through your mouth during hard rolls, and drink water without taking it out. The appeal is obvious — it barely feels like anything is in your mouth.

The boil-and-bite molding process is where the SISU loses points for me. It takes some practice to get right, and if you rush it, the fit will slip during rolls. You can redo it up to 10 times, which is nice, but I found the process finicky compared to just sending in a dental impression and getting a perfect guard back.

Is it as protective as a custom guard or even a thicker boil-and-bite? No. The 1.6mm thickness means you are trading protection for comfort. For BJJ, where the impacts are mostly accidental elbows and knees, that trade-off is reasonable — but after using my Gladiator, I personally prefer the security of a custom fit.

The drawback: the molding process can be frustrating, and the thin profile means less protection than thicker options. Good as a backup or if you absolutely cannot stand anything bulky in your mouth.

3. Venum Challenger — Best Impact Protection

Venum makes fight gear, and the Challenger reflects that. The dual-density construction has a gel inner frame that absorbs impact and a harder rubber outer shell that distributes force. If you are doing MMA, competing in tournaments, or just want the most protection possible from a boil-and-bite, this is the one to get.

It comes with a ventilated case, which is a small detail that matters — mouthguards left in a gym bag without airflow get disgusting fast.

The trade-off is bulk. The Challenger is noticeably thicker than the SISU, and you will feel it in your mouth during rolls. Talking is harder, breathing is slightly restricted during intense cardio, and you will probably take it out between rounds to drink water.

The drawback: the thickness that makes it protective also makes it less comfortable for everyday BJJ training.

4. Shock Doctor Gel Max — Best Budget Starter

This is the mouthguard I recommend to anyone just starting BJJ who does not want to spend much until they know they are going to stick with the sport. At $16, you can grab one at almost any sporting goods store or have it delivered tomorrow.

The gel-fit liner molds reasonably well to your teeth. It is not as precise as a custom guard, but it holds in place well enough for training. The integrated breathing channel helps with airflow, though it still feels bulkier in your mouth than the SISU.

The drawback: you get what you pay for in fit quality. It works, but once you try something better you will notice the difference immediately.

5. Redline Sportswear — Cheapest Option

At about $13, this is the absolute cheapest mouthguard I would recommend for BJJ. It does the basic job: it covers your teeth, it stays in place (mostly), and it is better than nothing. The vented case is a nice inclusion at this price.

The fit is noticeably less precise than the SISU or Shock Doctor. It tends to loosen faster with regular use, so you may find yourself remolding it every few weeks. The material also wears down quicker — expect to replace it every 3 to 4 months if you train regularly.

The drawback: you will probably outgrow it fast. But if you just need something to protect your teeth while you figure out your BJJ gear situation, $13 is basically free insurance.

Why BJJ Specifically Needs a Thin Mouthguard

Most mouthguard recommendations come from football or boxing, where the priority is absorbing full-force impacts. BJJ is different:

• Breathing matters more. You are doing intense cardio for 5 to 7 minute rounds. A bulky guard restricts airflow through your mouth, which compounds fatigue.
• Communication is constant. You need to tell your training partner to stop, tap verbally, or ask your coach a question. A thick guard makes talking difficult.
• Impacts are incidental, not intentional. Accidental elbows during scrambles, knees during guard passes, and headbutts during takedowns — these are the real threats. You do not need boxing-level protection for these situations.
• Convenience determines compliance. If your mouthguard is annoying, you will stop wearing it. Then you will take an elbow and regret it.

This is why the SISU Aero at 1.6mm is the most popular mouthguard in BJJ gyms. It solves the compliance problem — you actually wear it because you barely notice it.

Product Comparison

Frequently Asked Questions

Can you remold a boil-and-bite mouthguard?

Boil-and-bite mouthguards like the SISU Aero or Shock Doctor Gel Max can be remolded 5 to 10 times if you need to adjust the fit. Custom mouthguards from Impact or a dentist are made from a mold of your teeth and cannot be reshaped, but they fit perfectly the first time.

How often should I replace my BJJ mouthguard?

Replace your mouthguard when it gets thin spots, tears, or no longer fits snugly against your teeth. For most people training 3 or more days per week, that is every 6 to 12 months. Custom mouthguards last longer, usually 2 to 3 years.

Do I need a mouthguard for no-gi BJJ?

Yes, you should absolutely wear a mouthguard for no-gi BJJ. Accidental elbows, knees, and headbutts happen just as often in no-gi as they do in gi training. Your teeth do not care whether your training partner is wearing a gi or not.

Does a thicker mouthguard protect better?

A thinner mouthguard like the SISU Aero (1.6mm) allows you to breathe and talk normally while training. Thicker mouthguards like the Shock Doctor Gel Max provide more impact protection but can make breathing through your mouth harder during intense rolls. For BJJ, thinner is usually better since the impacts are less severe than in boxing or MMA striking.

Bottom Line

A mouthguard is the cheapest insurance in BJJ. Here is what I recommend:

• Best overall (what I use): Gladiator Custom Mouthguard PRO — lab-made from your dental impression, nothing fits better. Mine has lasted years and they store your mold forever for easy reorders.
• Thinnest option: SISU Aero 1.6mm — barely noticeable in your mouth. Good backup guard, though the molding process takes patience.
• Best impact protection: Venum Challenger — dual-density construction absorbs harder hits for MMA or tournament sparring.
• Best budget starter: Shock Doctor Gel Max — $16, available everywhere, good enough to protect your teeth while you figure out your preferences.
• Cheapest option: Redline Sportswear — $13 to get you started, replace it when you are ready to upgrade.

Protecting your teeth is part of BJJ injury prevention. If you are still building out your training gear, check out our guides on the best BJJ rash guard, best no-gi BJJ gear for beginners, and best BJJ gi brands.

Products Mentioned in This Article

Gladiator Custom Mouthguard PRO

by Gladiator

★★★★½ 4.7/5

$100.00

Lab-fabricated custom mouthguard made from your dental impression. This is what I personally use for every training session — the fit and comfort are unmatched.

• True custom fit from a dental impression — nothing fits better
• Maximum protection for teeth and jaw
• Lasts 2 to 3 years with regular training
• Personalized with your color, name, and logo
• Lifetime digital impression storage for easy reorders

• About $100 to $160 depending on customization
• Requires mailing in a dental impression and waiting for fabrication
• Cannot be remolded if your teeth shift

Check Price →

SISU Aero 1.6mm Mouthguard

by SISU

★★★★½ 4.6/5

$25.00

Ultra-thin 1.6mm mouthguard that lets you breathe, talk, and drink water without removing it. Custom fit with boil-and-bite molding.

• Only 1.6mm thin — you forget it is in your mouth
• Talk, breathe, and drink water without removing it
• Remoldable up to 10 times for a perfect fit
• Fits over braces and dental work

• Less impact protection than thicker guards
• Takes practice to get the boil-and-bite fit right
• Molding process can be finicky

Check Price →

Venum Challenger Mouthguard

by Venum

★★★★½ 4.5/5

$17.00

Dual-density mouthguard with a gel frame for impact absorption and a rubber outer shell. Includes a carrying case.

• Excellent impact protection for the price
• Gel frame absorbs shock well
• Comes with a ventilated carrying case
• Trusted brand in combat sports

• Thicker than SISU — harder to talk and breathe
• Gel frame can wear down after 6 to 8 months of heavy use

Check Price →

Shock Doctor Gel Max Mouthguard

by Shock Doctor

★★★★½ 4.4/5

$16.00

Budget-friendly boil-and-bite mouthguard with an integrated gel-fit liner for a custom feel and breathing channel.

• Under $16 — best value starter mouthguard
• Integrated breathing channel helps airflow
• Gel-fit liner molds closely to teeth
• Available at almost every sporting goods store

• Bulkier than SISU — noticeable in your mouth
• Gel material can degrade faster than expected

Check Price →

Redline Sportswear Custom Mouthguard

by Redline Sportswear

★★★★ 4.2/5

$13.00

Simple boil-and-bite mouthguard at the lowest price point with a vented carrying case included.

• Under $13 — cheapest option that still works
• Comes with a vented carrying case
• BPA and latex free
• Good enough to get started while you decide what you really want

• Fit is not as precise as SISU or Impact
• Tends to loosen over time faster than competitors

Check Price →