Extreme Endurance

The World’s #1 Endurance Supplement for Stamina, Recovery and Soreness.

Clinically proven to:

  • Reduce Lactic Acid by 26% - Less Muscle Soreness
  • Reduce Oxidative Stress by 39% - Fights Free Radical Damage
  • Reduce Creatine Kinase by 6X - Faster Recovery

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Delivered every 12 months

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Josh Bridges

There’s a noticeable difference in my soreness when I’m not on this product. There's a reason I’ve used this product for eight years!

Danielle Brandon

This is my secret that I don’t like to talk about. It’s my best recovery tool.

Craig Engels

The one product I take daily and recommend to everyone is Extreme Endurance. It’s insanely effective and the clinical research backs it. If you want to improve your running this is by far the easiest thing you can do!

Extreme Endurance vs the Competition

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.


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.

Customer Reviews

Based on 1390 reviews
Samuel Pappas

This is such a great product. Most noticible for myself was the endurance/recovery. Noticeable improvements in both area. Highly recommend this product

Thank you for your kind words! We're thrilled to hear that you've noticed an improvement in your performance since taking Extreme Endurance. Keep up the great work!

Jody Watkins
what kinda witchcraft is this!!!

I am highly skeptical about any and everything health related. I try it not believing it will work. With this skepticism I finally decided to go with it a try. My.last run efore extreme endurance was a 30 min 3 mile. didn't run for a few days when I got my supplements. Took the 3 am and pm for 2 days before. y 1st ran and clocked a 28:30 3 mile. A few days later ran 3 miles in just under 27 min.Today I ran 3 miles in 26:36!!! Wow, I'm a ran for life!

Wow, that's amazing! We are glad that you decided to give it a try and are now a believer. Keep up the great work and continue to achieve your running goals!

Joseph W Carriker
XENDURANCE has surpassed all others with similar claims to heath, and has a permanent place now.

XENDURANCE has been one of the many choices that I have made this year approaching the age of 34 that I have made. If you're a person that is exploring grounding, ice baths, healthy foods, testosterone regulation, or libido balance supplements this is a perfect addition to your stack of new health choices.

Awesome! Thank you for taking the time to leave such a positive review for our product, Extreme Endurance. We are thrilled to hear that it has surpassed all others you have tried and has become a permanent part of your health routine. We appreciate your trust in our product and we are happy to be a part of your journey towards a healthier lifestyle. Keep up the great work!

Christopher Tandy
I smoked the guys at work!!

As firefighters we CrossFit at work. I killed them this week! After two weeks of use, I noticed improved run times and felt strong through my workouts!! As a 47 year old Captain, I was crushing it this week! Tanks Xendurance!!

Amazing! We are thrilled to hear about your success with our Extreme Endurance product! As a firefighter and CrossFit athlete, we know how important it is to have the strength and endurance to perform at your best. Thank you for making us part of your fitness journey! Keep up the amazing work!

Adam Brown
Amazing Results

After a two months of taking xtreme endurance I dropped 2 seconds in my 100 freestyle. A lifetime best at 43 years old. Better than my college time.

Awesome! Thank you so much for taking the time to share your experience with Extreme Endurance. We are thrilled to hear that our product has helped you achieve such amazing results in just two months. Congratulations on your impressive improvement! Keep up the great work!

Alexandra Tinsley
Reduced recovery time

As an ultra runner recovery is a difficult aspect of training I struggle with. I don’t like to take brakes even after hard training runs or races because running is my mental break/meditation. When I have to take extended days off training to recover I become frustrated. Xendurance helped drastically reduce my recovery time in between races and training and hard training days. I noticed a significant reduction in time away from running due to soreness after I began taking endurance. It has allowed me to get back to doing what I love quicker than ever before.

Wow! Thank you for sharing your experience with our Extreme Endurance product. We are glad that our product has been able to support you in your ultra running journey. Keep pushing your limits and we wish you all the best in your future races and training runs!

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