GO2 Endurance Workout Device
- Ken Mitchell
- Sep 18, 2021
- 5 min read
Updated: Feb 4
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GO2 Endurance Workout Device:
Price: $54.99 BUY NOW
amazon.com
Manufacturer Product Info: SCIENTIFICALLY PROVEN: We had independent PhD Scientists test GO² against Battle Mouthguards. The results: GO² mouthguards improved VO2 Max by 7% over Battle Mouthguards and Endurance by 6%. More oxygen means fresher legs – especially in the second half, ability to think more clearly, and recover faster between plays.
BEST QUALITY: With largest breathing hole on the market, the GO² mouthguard provides full lip, mouth and teeth protection when you need it most while harnessing proven scientific principals of PEEP (Positive End Expiratory Pressure) to increase oxygen. Hospitals have used PEEP to help people breathe better for 40 years, so you know it works! The result: improved stamina, peak performance, and clearer thinking.
EASY TO USE: Easy to use and comfortable to wear, the mouthpiece is suitable for athletes with or without braces on their teeth; also one size fits most – just bite down and you’re set.
100% GUARANTEE: We stand by our product. If you are not 100% satisfied, contact us directly (even if after the Amazon return window) and we will provide you with your choice of a hassle and cost free replacement or refund. Designed by Doctors in the USA. Made in the USA. Meets WADA, International, National and High School rules. We stand by our product!!
Recommended Sports : Running, Cycling, Hiking and Weightlifting
Available Sizes: Adult 11+
Country of Origin: USA
Review:
Needless to say I was a little skeptical of this product. But with all of the scientific data GO2 provides, I really wanted to believe in this product. I read several reviews on Amazon and even heard it helps runners who have asthma.
I really wanted to try this mouthpiece because I'm an occasional jogger, pain willing. After using the device for about a month, I have found this device to be very helpful with my endurance. I really, feel like I can run a little longer than I normally would. It also feels like my recovery times have imporoved. I will continue to use the device and keep updating this post with updates on my stamina. Maybe its a placebo effect or something psychological or maybe I was focusing more on my breathing because of the device, I don't know, but I really feel like this device is working and will continue to use it.
I would like to have let my son, who plays college football and lifts weights, to give this mouthguard a try, but at $54.99, I wont be buying another one for a while. There aren't many people that use this device for weight training but I believe this mouthguard would be awesome for lifting weights because breathing and clenching protection is so important.
The only issue I had with the GO2 Endurance Workout Device was the tendency to drool. It seems like its getting less and less the more I use it. It also doesn't come with a carrying case, but you can purchase the Coollo Sports lip protector mouthguard case. Buy Now
Pros + :
Increases oxygen and endurance
Speeds up recovery time
Fitting or molding process isn't required, just pop it in and start exercising
Cons - :
Causes drooling (but may decrease over time)
doesn't come with a carrying case
Amazon Customer Reviews: 4.2 out of 5 stars (469 Reviews)
BUY NOW amazon.com
Amazon Rank in Sports Mouthguards: #43

The Mouthguard Review rating systems below rates mouthguards from 1.0 star (being the worst) to 5.0 stars (being the best) I only recommend mouthguards that are ranked 4.0 and above.

HOW I (The Author) TEST MOUTHGUARDS & WHY I CAN BE TRUSTED
My name is Ken Mitchell. I Have been fabricating custom mouthguards for more than 15 years and have been a dental technician for over 20 years. I also, have owned my own dental laboratory for over 20 years.
Besides having work experience with mouthguards, I know first hand the importance of mouthguards in the sports world. I have played several sports throughout my life at the hight school level, including basketball, football, baseball and beach volleyball. I am also a father to two sons and a daughter who have played Soccer, Football, Basketball, Volleyball, Lacrosse and Baseball ever since they were in the first grade. From time to time I have used my children to test mouthguards to get a first-hand, real-world experience with custom mouthguards and store bought mouthguards.
I search for every mouthguard on the market. Then, I purchase (with my own funds) every mouthguard I review through places like Amazon, eBay or directly from the manufacturer, just like you would, then evaluate every mouthguard based on my expert opinion. I also comb the internet to find other reviews on durability to develop a better understanding of specific mouthguards pros and cons over an extended period of time.
Every mouthguard I review, is fitted and examined by me. The only time a mouthguard is fitted by another person besides me, would be my son, who plays college football. I use him mainly to fit and use mouthguards for weight training and football.
When I review a mouthguard it must pass certain criteria to rank in my top 10.
FIT- I believe this is the most important factor in evaluating a mouthguard, because without a tight fit, all of the other criteria can be thrown out the window. When wearing a mouthguard you shouldn't have to clench your teeth to stop the mouthguard from falling out. It should fit as tight as possible.
Comfort- Comfort goes hand in hand with the fit, if the the mouthguard is comfortable you wont get distracted by focusing on your mouthguard, instead you will be focused on the game and perform at your highest level.
Protection/Tooth Coverage- With advancement in materials, mouthguards that are thick, aren't necessarily more protective than thinner mouthguards. Brands like SISU and Game On, provide thinner mouthguards that are 40-100% stronger than EVA (ethylene vinyl acetate) that is used by most mouthguard manufacturers. A proper fitting mouthguard should cover at least your first molars to provide adequate protection. A mouthguard shouldn't extend past your second molar because it could trigger the gag reflex. Also, your mouthguard should cover your gums or the roots of your teeth.
Sport- Almost every mouthguard on the market is made for use in multiple sports but there are a few mouthguards that are designed for weight training or exercising. I will break down which sport each mouthguard is better for.
Design- I examine the color variations available and the overall design of the mouthguard, the bells and whistles if you will.
Fitting process- Most boil-n-bite mouthguards are fitted with the same process, although some fitting processes are more uncomfortable than others.
Remember to always take into consideration that every mouthguard may not suit your specific requirements. Each person is different and everyone's mouth is unique to that person. The Mouthguard Review can only evaluate the initial fit of a mouthguard and only "real world" use can show long term durability and other design flaws.
*The Mouthguard Review has no connection to any mouthguard manufacturer and has no financial incentive to rate any brand over another. All of the reviews are written and performed by one person and are 100% unbiased.
THE MATERIALS AND INFORMATION IN THIS ARTICLE HAVE BEEN PREPARED OR ASSEMBLED BY THE MOUTHGUARD REVIEW AND ARE INTENDED FOR INFORMATIONAL PURPOSES ONLY AND ARE NOT A SUBSTITUTE FOR ADVICE FROM A LICENSED HEALTH-CAR PROFESSIONAL. YOU SHOULD NOT RELY SOLELY ON THIS CONTENT, AND THE MOUTHGUARD REVIEW ASSUMES NO LIABILITY FOR INACCURACIES. ALWAYS READ LABELS AND DIRECTIONS BEFORE USING A PRODUCT. SOME OF THE INFORMATION MAY BE DATED AND MAY NOT REFLECT THE MOST CURRENT EVENTS. I WROTE THIS ARTICLE MYSELF AND IT EXPRESSES MY OWN OPINIONS.











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