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 1403 reviews
Pills Don’t Digest!!!

I took these pills on Sunday and Monday morning for the first time ever and I was admitted to the ER on Monday morning with severe stomach pain. They did a CT scan and the pills were found in WHOLE form sitting in my small intestines. When I finally left I tested them by putting them in a water bottle, for 24 hours they never dissolved. Do NOT recommend!! I expect a full refund and will not be purchasing from here again.

Jorge A Cabrera

I ha e been very soar lately...finally endurance arrived. Been taking them for the last two days. Had my first long distance run in a while..wow...the way it just keeps your body from wanting to keep going, not tired just energized. This stuff is amazing it really works...

Thank you for sharing your positive experience with our product, Extreme Endurance. We are so glad to hear that it has helped you during your long distance run and provided you with sustained energy. We appreciate your feedback and hope that our product continues to support your endurance. Keep up the great work!

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!

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