Protecting your teeth on the mat doesn’t have to be complicated or expensive. Here are the best mouthguards for BJJ based on real training experience.
You’ve probably heard the horror stories. A training partner catches an accidental elbow during a guard pass. Someone eats a knee while shooting a sloppy double leg. You throw up a triangle and the guy stacks you so hard your own knee gets driven into your face. The result? Chipped teeth, split lips, and dental bills that make competition entry fees look like pocket change.
I’ve trained with guys who’ve lost teeth in BJJ. Not from strikes — from the kind of incidental contact that happens every single training session. Guard passes, scrambles, takedowns, and even just getting your jaw crunched during a tight cross-face. It adds up, and the one thing that separates a funny “that was close” moment from a $3,000 dental bill is a $15 mouthguard sitting in your gym bag.
The truth is, you don’t need a mouthguard designed for boxing or MMA. You need one that’s comfortable enough to wear for an entire one-hour class, thin enough to breathe through when you’re gassed, and protective enough to handle the random impacts that are part of grappling. That’s a different set of priorities than what a striker needs, and it changes which mouthguards are actually worth buying.
Here are my top picks, followed by everything you need to know to choose the right one.
Quick Comparison
| Mouthguard | Type | Thickness | Price | Best For | Where to Buy |
|---|---|---|---|---|---|
| Shock Doctor Gel Max | Boil-and-bite | ~4mm | ~$13–16 | Best overall for most BJJ practitioners | Amazon |
| Venum Challenger | Boil-and-bite | ~4mm | ~$13–17 | Best budget option for combat sports | Amazon |
| SISU Aero | Boil-and-bite | 1.6mm | ~$25–30 | Best for breathing and communication | Amazon |
| SISU Max | Boil-and-bite | 2.4mm | ~$30–35 | Best for heavy sparring and competition | Amazon |
| Venum Predator | Boil-and-bite | ~4mm | ~$18–25 | Best upgrade for serious grapplers | Amazon |
1. Shock Doctor Gel Max — Best Overall BJJ Mouthguard
Price: ~$13–16 on Amazon | Type: Boil-and-bite | Sizes: Youth, Adult
The Shock Doctor Gel Max is the mouthguard I recommend to anyone who asks “what mouthguard should I get for BJJ?” It’s not the thinnest, it’s not the fanciest, and it’s definitely not the most expensive. But it does the job reliably, it fits well after molding, and it’s cheap enough that you won’t hesitate to replace it every few months — which you should be doing anyway.
The triple-layer design uses a heavy-duty rubber Exoskeletal Shock Frame on the outside with a Gel-Fit liner on the inside that molds to your teeth during the boil-and-bite process. The breathing channel cut into the front actually works; you can breathe through it during hard rolls without feeling like you’re suffocating.
What works for BJJ: The fit is secure enough that it stays in place during scrambles without needing to clench down. The integrated breathing channel matters more in grappling than striking because you’re constantly in oxygen debt from fighting grips, escaping positions, and working submissions. The convertible tether is a nice touch — you won’t use the strap for BJJ, but it means the same mouthguard works if you also do football or lacrosse.
What to watch out for: It’s thicker than the SISU models, so talking is more muffled. Some users report it feeling small out of the package — Shock Doctor says it expands up to 20% during proper fitting, so follow the instructions carefully. It’s not compatible with braces (Shock Doctor makes a separate braces model). A few reviewers mention the fit “shrinks” slightly after repeated use, requiring a re-mold. You can re-mold it, but expect to do this a couple of times over the life of the guard.
Availability: Widely available on Amazon in multiple colors. In stock as of March 2026.
[See the Shock Doctor Gel Max on Amazon →]
2. Venum Challenger — Best Budget BJJ Mouthguard
Price: ~$13–17 on Amazon | Type: Boil-and-bite | Sizes: One size (Adult)
If you’ve watched any UFC event in the last few years, you know the brand — Venum is the UFC’s official outfitting partner. The Challenger is Venum’s entry-level mouthguard, and it’s popular in BJJ and MMA academies worldwide for good reason: it works, it’s cheap, and it comes with a case.
The Challenger uses a Nextfit Gel Frame for molding and a high-density rubber frame that disperses impact toward your strongest teeth (the molars). The breathing channel is narrower than the Shock Doctor’s but still functional. It includes a ventilated carrying case, which is a genuinely useful inclusion — keeping your mouthguard in a case instead of loose in your gym bag is the single most important thing you can do for hygiene and longevity.
What works for BJJ: The gel frame provides a good custom fit, the rubber outer frame absorbs shock well for accidental impacts, and it stays in place during rolls. It’s a combat sports mouthguard designed by a combat sports brand — the fit and form factor feel “right” for grappling in a way that generic sports mouthguards sometimes don’t. The case is a real bonus at this price point.
What to watch out for: Fit can be inconsistent. Some colors/batches seem to mold better than others based on Amazon reviews. It’s also one-size, so if you have a particularly small or large mouth, the Shock Doctor’s separate Youth and Adult sizing may serve you better. Some variants have been going in and out of stock on Amazon (the Black/Orange colorway is typically the most reliably available and carries the #1 Best Seller badge in mouthguards).
Availability: The Black/Orange variant (the most popular) is currently available and ships from Amazon. Some other color variants and the newer Strap/Strapless model have had intermittent availability issues. Check current stock before ordering.
[See the Venum Challenger on Amazon →]
3. SISU Aero — Best BJJ Mouthguard for Breathing
Price: ~$25–30 on Amazon | Type: Boil-and-bite (thermoplastic) | Sizes: Small, Medium, Large
The SISU Aero is a fundamentally different kind of mouthguard, and it’s the one that generates the most debate in BJJ circles. At just 1.6mm thick — 50% thinner than conventional mouthguards — it’s barely there. You can talk normally, drink water, and breathe without restriction while wearing it. For a sport where you’re constantly asking your coach questions, communicating with training partners, and need maximum airflow during six-minute rounds of sparring, that matters.
SISU uses a proprietary perforated thermoplastic material with what they call Diffusix technology. Instead of absorbing impact through bulk (like traditional mouthguards), the perforations distribute force across a wider area. It starts flat and you mold it to your teeth with hot water, creating a custom-fitted shell that clips onto your upper teeth and stays there. It can be remolded up to 20 times if you don’t get the fit right initially.
What works for BJJ: The ability to talk, breathe, and drink without removing it is a genuine game-changer for training. In BJJ, you’re constantly communicating with your coach, asking training partners about technique, and trying to hydrate between rounds. With a traditional mouthguard, most people just take it out — which defeats the purpose. The SISU’s thinness means you’ll actually wear it consistently. It’s also compatible with braces, BPA-free, and backed by a $35,000 one-year dental warranty.
What to watch out for: The protection trade-off is real. At 1.6mm, the Aero provides less cushioning against hard impacts than a 4mm boil-and-bite. For pure BJJ training where impacts are incidental, most practitioners find it adequate. But if you also do MMA sparring or hard takedown sessions where face-to-mat impacts are common, you may want something thicker. The price is also roughly double the Shock Doctor or Venum options. Sizing is based on height rather than age: Small for under 5′, Medium for 5’–6′, Large for over 6′.
Availability: Widely available on Amazon in multiple colors and all three sizes. SISU has also released NextGen versions with a wider bite pad and rounded edges for improved comfort. In stock as of March 2026.
[See the SISU Aero on Amazon →]
4. SISU Max — Best Mouthguard for BJJ Competition
Price: ~$30–35 on Amazon | Type: Boil-and-bite (thermoplastic) | Sizes: One Size (fits 11+)
The SISU Max is the answer for practitioners who love the SISU concept but want more protection. At 2.4mm thick — still 30% thinner than conventional mouthguards — the Max splits the difference between the Aero’s breathability and the impact absorption of a traditional guard. SISU calls it their most protective model, and it’s specifically marketed for high-impact sports including MMA and jiu-jitsu.
It uses the same Diffusix perforated technology as the Aero but with a thicker thermoplastic material that SISU says is 50% stronger with 8x greater tensile strength than conventional mouthguard materials. The NextGen version features the wider bite pad and rounded edges for improved moldability and comfort. Like the Aero, it can be remolded up to 20 times.
What works for BJJ: This is the sweet spot for serious BJJ practitioners who compete regularly. Tournaments involve harder rolls with unfamiliar partners, more aggressive takedowns, and the kind of intensity where incidental impacts happen more frequently. The Max gives you noticeably more protection than the Aero while keeping most of the breathability and talk-ability advantages. If you train five or six days a week and compete regularly, the price difference over the Gel Max or Challenger is worth it.
What to watch out for: At $30–35, it’s the most expensive boil-and-bite option on this list (though still far cheaper than a custom guard from a dentist). The one-size design means it won’t be ideal for everyone. If you’re under 5′ tall or have a smaller mouth, the SISU Aero in Small or Medium may be a better fit. Some users report the initial molding takes a bit more care to get right compared to a standard boil-and-bite — follow SISU’s instructions precisely and don’t rush the process. Compatible with braces.
Availability: Available on Amazon in multiple colors. In stock as of March 2026. Also available with an included molding Heat Pack for on-the-go fitting.
[See the SISU Max on Amazon →]
5. Venum Predator — Best Upgrade for Serious Grapplers
Price: ~$18–25 on Amazon | Type: Boil-and-bite | Sizes: One Size (Adult)
The Venum Predator is the step up from the Challenger within Venum’s lineup, and it’s a genuine improvement rather than just a marketing upsell. The dual-core design uses a Nextfit Gel Frame for molding combined with a multi-layer construction that first absorbs impact, then disperses the shockwave toward the molars (your strongest teeth). It’s a more sophisticated approach to impact management than the single-layer Challenger.
The Predator has a lower profile than most traditional boil-and-bites, which means better breathing and less interference when talking. It includes a protective case and comes in a wide range of colorways. Venum designed it in collaboration with UFC fighters, and it’s a staple in MMA gyms — but it’s equally at home in a BJJ academy.
What works for BJJ: The dual-core impact management is useful for BJJ specifically because the impacts we take tend to come from odd angles — a knee to the jaw during a scramble, an elbow during a guard pass, face-first into the mat on a sloppy shot. The Predator handles multi-directional impact better than simpler single-layer guards. The lower profile design means better breathing than the Challenger, which matters during long open mat sessions. At $18–25, it’s a meaningful upgrade over the budget options without hitting SISU pricing territory.
What to watch out for: Like the Challenger, it’s one-size-fits-all, which won’t work for everyone. The boil-and-bite process requires a bit more precision to get the dual-layer system to mold correctly — take your time with it. Not compatible with braces. Some newer variants (Strap/Strapless versions released in early 2025) have had availability issues, but the standard Predator remains well-stocked. Several color options are in stock and shipped directly by Amazon.
Availability: Available on Amazon in multiple colorways (Khaki/Black, Black/Black, and others in stock and shipped by Amazon as of March 2026).
[See the Venum Predator on Amazon →]
Types of BJJ Mouthguards Explained
Before diving into what makes a good mouthguard for BJJ, it helps to understand the three main categories.
Stock Mouthguards (~$1–5)
These are the pre-formed plastic guards you find at pharmacies and big-box stores. They come in one generic shape, and you just bite down on them. They’re cheap, and that’s about all they have going for them.
For BJJ, stock mouthguards are essentially useless. They don’t stay in place during grappling, they interfere with breathing, and you’ll spend more time adjusting the guard than you will rolling. They’re uncomfortable enough that you won’t wear them consistently, which defeats the entire purpose. Skip these entirely.
Boil-and-Bite Mouthguards (~$10–35)
This is where all five of our picks fall, and it’s the sweet spot for the vast majority of BJJ practitioners. You heat the guard in boiling water to soften the thermoplastic material, then bite down to create a custom impression of your teeth. The result is a semi-custom fit that stays in place, protects your teeth, and costs a fraction of what a dentist-made guard runs.
The quality range within this category is huge. A $10 boil-and-bite from a reputable brand like Shock Doctor or Venum will protect your teeth perfectly well. A $30 SISU uses advanced thermoplastic materials and perforated construction for a thinner, more breathable experience. Both are legitimate options — it comes down to your priorities and budget.
Custom-Fitted Mouthguards (~$100–400+)
These are made by a dentist from an impression of your teeth (or increasingly, from a 3D scan). Companies like GuardLab, Impact Custom, and Sporting Smiles offer mail-order custom guards where you take an impression at home and send it in. The result is the most precise fit, best comfort, and highest protection available.
Custom guards are worth considering if you compete at a high level, train every day, or if you’ve already invested significant money in dental work. For most recreational practitioners training 3–4 days a week, a quality boil-and-bite provides more than adequate protection at a fraction of the cost.
How to Choose the Right Mouthguard for BJJ
Thickness Matters (More Than You Think)
Mouthguard thickness is measured in millimeters and directly affects both protection and comfort.
1.6–2.0mm (SISU Aero range): Maximum breathability and communication, adequate protection for incidental BJJ impacts, ideal for training-focused practitioners who prioritize wearing it consistently.
2.4mm (SISU Max range): A balanced middle ground with noticeably more impact absorption while retaining most of the talk-and-breathe benefits of thinner guards. Good for competition and heavy sparring.
~4mm (Shock Doctor, Venum range): Standard protection level, excellent impact absorption, more noticeable in your mouth but still comfortable with proper fitting. The workhorse option for most practitioners.
For pure BJJ — no striking — a 4mm guard is more than adequate. The impacts you’ll take are incidental: accidental elbows, knees during scrambles, and face-to-mat contact during takedowns. You’re not absorbing repeated punches. This is why thinner guards like the SISU Aero work in BJJ when they wouldn’t be appropriate for boxing.
Single vs. Double Mouthguards
Single mouthguards cover your upper teeth only. Double mouthguards cover both upper and lower teeth. For BJJ, always go with a single. Double mouthguards restrict breathing significantly, make talking nearly impossible, and provide overkill protection for a non-striking sport. Every mouthguard on this list is a single (upper-only) guard.
Material: EVA vs. Thermoplastic
Most traditional boil-and-bite guards use EVA (ethylene-vinyl acetate), a soft, flexible material that absorbs impact through compression. The Shock Doctor, Venum Challenger, and Venum Predator all use EVA-based construction.
SISU guards use a rigid thermoplastic that distributes force through its perforated structure rather than absorbing it through thickness. This is what allows SISU to make guards that are dramatically thinner while still providing meaningful protection.
Neither approach is objectively better — they’re different engineering solutions. EVA guards feel cushioned and absorb direct impact well. Thermoplastic guards are thinner and more comfortable but feel “harder” in the mouth. Personal preference plays a role here, and you may want to try one of each to see which you prefer.
Fit and Breathing
A mouthguard is only useful if you actually wear it. The number one reason BJJ practitioners don’t wear mouthguards is that they interfere with breathing during intense rolling. When you’re already gasping for air in side control, the last thing you want is a bulky piece of plastic restricting your airflow.
This is why fit matters more than price. A well-fitted $13 Shock Doctor that you wear every session protects you infinitely more than a $150 custom guard that stays in your bag because it’s uncomfortable. When molding your boil-and-bite, take the time to get it right. Follow the manufacturer’s instructions exactly. If the fit isn’t good, most guards can be re-molded 2–3 times (SISU models up to 20 times).
How to Properly Mold a Boil-and-Bite Mouthguard
Getting the fit right makes or breaks a boil-and-bite mouthguard. Here’s the process:
What you need: Your mouthguard, a pot of boiling water, a bowl of ice water, a slotted spoon, a timer, and a mirror.
Step 1 — Boil. Bring water to a rolling boil, then remove from heat. Let it stand for 30 seconds. Submerge the mouthguard for the time specified in the instructions (usually 60–90 seconds). Don’t let it sit on the bottom of the pot where it can deform. Use the slotted spoon.
Step 2 — Cool briefly. Remove from hot water and dip in cold water for 1–2 seconds — just enough to make it comfortable to handle, not enough to cool the material.
Step 3 — Mold. Working in front of a mirror, center the guard on your upper teeth. Press firmly into your molars first, then the front teeth. Bite down, suck in air to create suction, and use your fingers to press the edges into your teeth and gumline through your lips and cheeks. Hold for 20–30 seconds.
Step 4 — Set. Remove carefully and place in ice water for 30–60 seconds to set the shape.
Step 5 — Test. The guard should stay in place with your mouth open, without clenching. You should be able to breathe comfortably. If it doesn’t fit right, most guards can be re-molded by starting the process over.
Common mistakes: Not heating long enough (poor fit), letting it cool too much before inserting (won’t mold properly), not pressing firmly enough into teeth (loose fit), or biting too hard (guard becomes too thin in spots). Take your time — a well-molded guard will last months of daily use.
Mouthguard Care and Maintenance
A mouthguard that’s covered in bacteria is a mouthguard you won’t wear. Keep it clean and it’ll last longer.
After every session: Rinse under cool water immediately. Brush with a toothbrush and mild soap (not toothpaste — the abrasives can damage the material over time). Rinse thoroughly, shake off excess water, and store in a ventilated case.
Weekly deep clean: Soak in mouthwash for 30 minutes, or use a denture cleaning tablet. Don’t leave it soaking for hours — extended exposure to cleaning solutions can degrade the material.
Storage: Always use a ventilated case. Never leave your mouthguard loose in your gym bag — it’ll pick up bacteria from your sweaty gear and start to smell. Never leave it in a hot car or in direct sunlight, as heat can warp the material and ruin the fit.
When to replace: Every 3–6 months for regular training use, or sooner if you notice it loosening, thinning, developing cracks, or losing its shape. A mouthguard that doesn’t fit snugly isn’t protecting you. At $13–30 per guard, replacement is cheap insurance.
Do You Actually Need a Mouthguard for BJJ?
Yes. Here’s why.
BJJ is not a striking sport, but dental injuries happen regularly. Guard passes generate lateral pressure on the jaw. Takedowns create face-to-mat impacts. Scrambles produce accidental elbows and knees. Cross-faces and shoulder pressure can crunch your jaw. Triangles, guillotines, and other chokes can push your jaw into awkward positions under force.
I’ve personally seen chipped teeth, split lips, and loosened crowns on the mat — all during normal training, not competition. A training partner of mine took an accidental elbow during a guard pass and ended up spending over $4,000 on dental work. Root canals, crowns, follow-up visits over six months. He now wears a mouthguard every single session.
For $13–30, you can prevent thousands in dental bills and weeks of discomfort. There is no legitimate argument against wearing one during live rolling.
Most gyms don’t require mouthguards for drilling — just for sparring and live rolling. That’s a reasonable approach. If you’re only doing positional drills at low intensity, you’re probably fine without one. But the moment intensity goes up and resistance is live, put it in.
FAQ
Can I use a boxing or MMA mouthguard for BJJ?
Yes, but you don’t need to. Boxing and MMA mouthguards are typically thicker (6mm+) because they’re designed to absorb direct punches. That extra thickness restricts breathing and talking — neither of which you want during a one-hour BJJ class. A 2–4mm guard designed for contact sports is the sweet spot for grappling.
Should I get upper only or upper and lower?
Upper only. Every mouthguard on this list is upper-only. Double (upper and lower) mouthguards are heavier, make breathing significantly harder, and are designed for sports with frequent direct facial strikes. BJJ doesn’t require that level of protection, and the breathing restriction is a real disadvantage.
Can I wear a mouthguard with braces?
Yes, but you need a braces-compatible model. SISU guards (both Aero and Max) are compatible with braces. Shock Doctor makes a separate braces-specific mouthguard line. Standard Venum Challenger and Predator guards are NOT braces-compatible. If you have braces, consult your orthodontist about fitting.
How often should I replace my mouthguard?
Every 3–6 months with regular use. If it starts feeling loose, shows visible wear or cracks, or you can’t maintain a snug fit after re-molding, replace it immediately. A worn-out mouthguard is barely better than no mouthguard.
Are custom mouthguards worth it for BJJ?
For most practitioners, no. A quality boil-and-bite in the $15–30 range provides excellent protection for the incidental impacts in BJJ. Custom guards ($100–400+) make sense if you train professionally, have expensive existing dental work to protect, or if boil-and-bite options are consistently uncomfortable for you.
I’ve been training for years without a mouthguard. Why start now?
Because the one time you need it, you’ll wish you had it. Dental injuries in BJJ are low-frequency but high-cost events. Training without a mouthguard is like driving without a seatbelt — you’re fine until you’re suddenly very not fine. The cost of prevention is negligible compared to the cost of treatment.
Our Top Recommendations
Best overall: The Shock Doctor Gel Max (~$13–16) delivers the best combination of protection, fit, and value for the majority of BJJ practitioners. It’s the safe, reliable choice.
Best for breathing: The SISU Aero (~$25–30) is the mouthguard you’ll actually want to wear. If breathing restriction is the reason you haven’t been wearing a guard, the Aero solves that problem.
Best for competition: The SISU Max (~$30–35) balances protection and breathability better than anything else at its price point. If you compete regularly, this is the one.
Best budget option: The Venum Challenger (~$13–17) gives you solid protection, a included case, and combat-sport credibility at an entry-level price.
Best mid-range upgrade: The Venum Predator (~$18–25) is a meaningful step up from budget guards with dual-core impact management, and it’s still under $25.
The most important thing? Wear one. Every sparring session. Your teeth will thank you.
Disclosure: This article contains affiliate links. If you purchase through these links, I may earn a commission at no additional cost to you. I only recommend mouthguards based on real training experience and honest assessment. Your support helps keep BJJ Gear Guide running and allows me to create more free content for the BJJ community.