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For over a decade, 12 clinical studies have proven the benefits of Extreme Endurance. Two of those studies are Gold Standard, double blind, placebo controlled, published studies. The results of those studies show a reduction of soreness, improvement in stamina and an accelerated recovery. In a 10-day clinical study, Extreme Endurance had an astounding 39% reduction in oxidative stress, which helps promote anti-aging benefits and cellular health. Numerous sources believe oxidative stress is the leading cause of many of our degenerative diseases. World class athletes have trusted Extreme Endurance since 2008 for performance benefits and the ongoing science has shown overall health advantages for everyone concerned about balancing their body’s pH and supporting cellular function to fight free radical damage*
The Benefits:
Clinical Studies:
OK I really thought that I would try this stuff and it would make a difference and I would just get my money back you know? But having just completed a half marathon in which I was two minutes under my goal time is amazing! For personal reasons I had also fallen off on some of my training, so I really wasn’t expecting to even hit the time I wanted, let alone come in two minutes faster. But a couple weeks ago I started this product and I kind of feel like logically it had to of helped me. I mean don’t get me wrong. I did consistently run, and took 2 to 3 CrossFit classes a week… so it’s not like I went into this race completely unprepared. I just wasn’t as dialed in on my training as I had wanted to be. But honestly, I felt like I just had more endurance as cheesy as that sounds. I kept waiting to feel fatigue during the race and I just didn’t feel that way. Again, I have to feel like this product played a part in that. So unfortunately, I won’t be getting my money back, and I’ll be spending more to continue to use it through marathon training for the Chicago Marathon 2023 😂
I am a 57 year old male, an avid weightlifter for 40 plus years. I’ve seen and tried a ton of supplements over the years including ultimate orange which was banned. Xendurance is by far the best I’ve used in all the years I’ve been training. After the first month I immediately signed up to be a team member because I knew I wouldn’t train without it. I’ve since introduced my son and brother to it and they too are now team members. Wish I would have found this sooner.
Hi Keith,
Thanks for the great review! We're glad to hear that you've found our product to be helpful and beneficial - it's great to see that our team is making a difference in people's lives!
I'm a distance runner and had plateaued at my last few races. I was feeling sluggish and just had no energy. I used Xendurance for 1 week and got PRs in both the 1600m and 3200m!
Hi Kristen,
Great news! Running can be rewarding when you use the right tools to help you achieve your goals. Thanks for using Xendurance and reaching your goals.
So, I have been using this for about 3 weeks now, I was very skeptical of the claims but figured I would try it. I really did not notice too much the first few days, even first week but after that I really noticed a difference. First thing was shaving times off my running, I really was not pushing it as I train for distance but I noticed my pace drop and I did not feel like I was pushing any harder than normal, I am not saying I was not working hard but the sustainability of the faster pace was easier to hold and maintain.
I was like okay, maybe that is just in my head but I will keep taking it and see what happens. I really have noticed reduce muscle fatigue and soreness, I am not saying no soreness after workouts but I am noticing it is greatly reduced. I am 53 years old and the body has been beat up pretty good age after taking this it seems I am able to bounce back to a more normal state quickly, again not saying no soreness at all but greatly reduced. Recently I completed a Spartan with extreme hills and I knew the next day was going to be rough for being sore, I figured my quads would be shot. I woke up the next day impressed at how I was not extremely sore, I was sore but nothing like I would have been if not taking this product.
I am giving 5 stars for now from my experience thus far, I will update as needed I have also noticed and climb in my VO2 since using this product also.
Hi Jason,
Thank you for your feedback!
Extreme Endurance is the absolute best supplement and I’ll never go a day without. It does everything it claims!!!
Hi Frank,
Thank you for your positive review of Extreme Endurance! We are glad to hear that you are enjoying the benefits of this supplement.
I'm a 52 y/o female athlete who cycles, mountain bikes, trail runs and hits the gym. The first thing I immediately noticed was the lack of muscle soreness after long training sessions and heavy weight days at the gym. After taking Extreme Endurance for over a week, I actually finished my rides faster than the guys I've been chasing for over 6 months with a smile and not completely exhausted. This is definitely a game changer for anyone who wants to push the limits without suffering days after training to recover.
Hi Mindy,,
Thanks for the awesome review about our Extreme Endurance We’re so pleased to hear it's working just as it should and that you’re enjoying it so much!
Go forth and conquer!
had it for few weeks so far...
Hi Alfadl,
Many thanks for the 4-star rating.
had it for few weeks so far..
Noticed reduced soreness within a few days of starting this supplement.
Hi CM,
We’re so happy to hear from you! We love that you like Essential and found it helpful.
been using for 2 months. Noticed results within the first week
Hi CM,
Great! Thanks for the awesome review about Extreme Endurance.
Say goodbye to frequent muscle fatigue & short-lived energy. Extreme Endurance triggers a powerful boost to stamina & aerobic threshold – helping you hustle through each workout & competitive event with a fierce drive of energy, resilience & longevity. Extreme Endurance is in your system and starts working within 72 hours and you WILL feel the difference.
Conquer soreness & lactic acid buildup – the main culprit of muscle fatigue from exercise. Thanks to Extreme Endurance’s ability to quickly react against muscle trauma and oxidative stress, your next training session or morning jog will leave you feeling renewed - and ready to go again!
- 26% Reduction of Lactic Acid -> Less Muscle Soreness / Improves Performance*
- 39% Reduction of Oxidative Stress -> Fights Free Radical Damage*
- 6X Reduction of Creatine Kinase (CK) -> Faster Muscle Recovery Time*
- Increase in Aerobic Threshold -> Last Longer, Go Harder*
- Certified by Informed-Choice & Informed-Sport**
Say goodbye to frequent muscle fatigue & short-lived energy. Extreme Endurance triggers a powerful boost to stamina & aerobic threshold – helping you burst through each workout & sporting event with a brand new, fierce drive of energy, resilience & longevity. Benefits start after just 72 hours, unlike many supplements that need several days or weeks to kick in.
Take 3 Tablets Of Extreme Endurance with or without food first thing in the morning
Take 3 Tablets Of Extreme Endurance with or without food before bed
When it’s time to unleash your inner-Hercules and bounce back stronger than ever… Its very hard to beat the results you will feel with Extreme Endurance.
| Benefits | Extreme Endurance | Other recovery supplements / Beta Alanine |
|---|---|---|
| Proven by rigorous scientific research and tested by unbiased 3rd parties. | ||
| Proven to reduce lactic acid by 26% | ||
| Proven to reduce oxidative stress by 39% | ||
| Informed-Sport Certified | ||
| Made in the U.S.A & backed by our 100% 30-day money back guarantee. |
25% off all products, apparel and accessories for a full year.
No matter the order size, receive free shipping anywhere in the US and Military APOs
More discounts from 40+ partners! PerformaSleep, Nike Training Club, Vitamix to name a few!
Have peace-of-mind knowing Extreme Endurance is fully compliant with all professional, collegiate and olympic organizations in the world. This formula contains zero banned ingredients – it’s an all-natural, electrolyte mineral supplement & it’s certified ISO 17025 tested for banned substances.
✔️ Calcium Carbonate – Strengthens muscle, bone & heart function
✔️ Papain – Anti-inflammatory that reduces muscle soreness after exercise
✔️ Magnesium – Improves muscle function & may boost athletic performance
✔️ Black Pepper Fruit – Powerful antioxidant that enriches nutrient absorption
✔️ Selenium, Chromium & Potassium – Vital minerals for growth & recovery
Trust is EVERYTHING. Josh Bridges, former 4X Crossfit games athlete and Navy Seal has used Extreme Endurance for 12 years. Danielle Brandon, Donavan Brazier, Craig Engles, Amanda Barnhart… to name a few…. have all trusted that this product helps their chances to get on top of the podium.
Backed by 12 unique clinical studies (two of which are published, Gold Standard, double-blind & placebo-controlled), Extreme Endurance is arguably the most researched & proven sports supplement in the world – and it’s formulated w/ 100% natural ingredients for ANYONE of any fitness level.
Time or measure your typical training or activity
Take the daily dose of Extreme Endurance for a minimum of 7 days
Re-time or measure your typical training or activity and you will see the difference
Third-party tested for prohibited substances
Return your product within 30 days no questions asked!
No artificial dyes, flavors or sweeteners in our products!
Change your mind? Return it within 30 days for a 100% refund – no questions asked.
OK I really thought that I would try this stuff and it would make a difference and I would just get my money back you know? But having just completed a half marathon in which I was two minutes under my goal time is amazing! For personal reasons I had also fallen off on some of my training, so I really wasn’t expecting to even hit the time I wanted, let alone come in two minutes faster. But a couple weeks ago I started this product and I kind of feel like logically it had to of helped me. I mean don’t get me wrong. I did consistently run, and took 2 to 3 CrossFit classes a week… so it’s not like I went into this race completely unprepared. I just wasn’t as dialed in on my training as I had wanted to be. But honestly, I felt like I just had more endurance as cheesy as that sounds. I kept waiting to feel fatigue during the race and I just didn’t feel that way. Again, I have to feel like this product played a part in that. So unfortunately, I won’t be getting my money back, and I’ll be spending more to continue to use it through marathon training for the Chicago Marathon 2023 😂
I am a 57 year old male, an avid weightlifter for 40 plus years. I’ve seen and tried a ton of supplements over the years including ultimate orange which was banned. Xendurance is by far the best I’ve used in all the years I’ve been training. After the first month I immediately signed up to be a team member because I knew I wouldn’t train without it. I’ve since introduced my son and brother to it and they too are now team members. Wish I would have found this sooner.
Hi Keith,
Thanks for the great review! We're glad to hear that you've found our product to be helpful and beneficial - it's great to see that our team is making a difference in people's lives!
I'm a distance runner and had plateaued at my last few races. I was feeling sluggish and just had no energy. I used Xendurance for 1 week and got PRs in both the 1600m and 3200m!
Hi Kristen,
Great news! Running can be rewarding when you use the right tools to help you achieve your goals. Thanks for using Xendurance and reaching your goals.
So, I have been using this for about 3 weeks now, I was very skeptical of the claims but figured I would try it. I really did not notice too much the first few days, even first week but after that I really noticed a difference. First thing was shaving times off my running, I really was not pushing it as I train for distance but I noticed my pace drop and I did not feel like I was pushing any harder than normal, I am not saying I was not working hard but the sustainability of the faster pace was easier to hold and maintain.
I was like okay, maybe that is just in my head but I will keep taking it and see what happens. I really have noticed reduce muscle fatigue and soreness, I am not saying no soreness after workouts but I am noticing it is greatly reduced. I am 53 years old and the body has been beat up pretty good age after taking this it seems I am able to bounce back to a more normal state quickly, again not saying no soreness at all but greatly reduced. Recently I completed a Spartan with extreme hills and I knew the next day was going to be rough for being sore, I figured my quads would be shot. I woke up the next day impressed at how I was not extremely sore, I was sore but nothing like I would have been if not taking this product.
I am giving 5 stars for now from my experience thus far, I will update as needed I have also noticed and climb in my VO2 since using this product also.
Hi Jason,
Thank you for your feedback!
Extreme Endurance is the absolute best supplement and I’ll never go a day without. It does everything it claims!!!
Hi Frank,
Thank you for your positive review of Extreme Endurance! We are glad to hear that you are enjoying the benefits of this supplement.
I'm a 52 y/o female athlete who cycles, mountain bikes, trail runs and hits the gym. The first thing I immediately noticed was the lack of muscle soreness after long training sessions and heavy weight days at the gym. After taking Extreme Endurance for over a week, I actually finished my rides faster than the guys I've been chasing for over 6 months with a smile and not completely exhausted. This is definitely a game changer for anyone who wants to push the limits without suffering days after training to recover.
Hi Mindy,,
Thanks for the awesome review about our Extreme Endurance We’re so pleased to hear it's working just as it should and that you’re enjoying it so much!
Go forth and conquer!
had it for few weeks so far...
Hi Alfadl,
Many thanks for the 4-star rating.
had it for few weeks so far..
Noticed reduced soreness within a few days of starting this supplement.
Hi CM,
We’re so happy to hear from you! We love that you like Essential and found it helpful.
been using for 2 months. Noticed results within the first week
Hi CM,
Great! Thanks for the awesome review about Extreme Endurance.
