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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TRAIN HARDER. RECOVER FASTER. SET NEW PRS.

Proven by Clinical Studies

Trusted by 100,000 Athletes

Trust is EVERYTHING... That's why Extreme Endurance is used by world-class performers like Josh Bridges to help their chances to get on top of the podium.

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.

BENEFITS XND OTHERS

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.

Getting the most out of Extreme Endurance

Frequently Asked Questions

Customer Reviews

Based on 1894 reviews
87%
(1650)
5%
(102)
2%
(44)
1%
(25)
4%
(73)
D
Danielle
I PR’d!!!

I’ve now PRd both my 10k and half marathon while taking extreme endurance. It works!

O
Oma Keith
Won m age group and took second place in every other age group that day

My husband loves this stuff. At 52 he has been killing it in all his races this year. He loves to compete in Triathlons but then also break up that sport and compete in all three sports separately now and then. So this year he did our local turkey trot. Now we also happen to live above 7,000 ft here in Southern California. And the competition is always brutal. But he completed the 0K in 54:16. A new personal best. Like I said, he loves this stuff.

Thank you for your review! We are thrilled to hear that Extreme Endurance has helped your husband achieve amazing results in his races. It's great to hear that he not only excels in triathlons, but also in individual sports. Congrats on his personal best in the turkey trot at such a high altitude! We are happy to be a part of his success. Keep up the amazing work!

E
Evy
Muy Buen Producto!!!

Lo he tomando tal como dice las instrucciones, y me he sentido muy bien, al día siguiente no me encuentro adolorida y he podido correr más rápido en mi entrenamiento para maratón. Lo seguiré utilizando.

Thank you so much for your review! We are thrilled to hear that Extreme Endurance has helped you feel better and perform better in your marathon training. We strive to provide products that make a noticeable difference in performance. We hope to continue meeting your expectations. Keep pushing to the extreme!

R
Richie
Xtreme endurance

I have been taking this for close to a month, and this product is awesome. I definitely felt a difference in my runs. Great product!

Thank you for sharing your experience with Extreme Endurance. We are thrilled to hear that you have noticed an improvement after taking our product for close to a month. It's always great to hear feedback from satisfied customers like yourself. Keep up the good work and happy running!

D
Dimitri Mathews
Very Effective! I Never write these…

Amazing product! I am currently training for OCR (for the first time in nearly 8 years and in my 40’s)…my VO2 max has increased from 37.6 to 40.3 and climbing after only 4 days of use! Recovery, power and overall conditioning are improving in ways I haven’t seen before using this supplement. I can not wait yo see where I go next!

Thank you for sharing your success with Extreme Endurance! We're thrilled to hear that it is working so well for you! It's amazing to see such a significant increase in your VO2 max in just 4 days of use! We're excited to see where this supplement takes you next. Keep up the great work!

T
Tom Lee
Skeptical at first but now a believer

I was skeptical that this worked, and certainly to what extent. Last year I was able to run 10 miles plus multiple times a week. I have had a really did great time getting even to 6. After about two weeks of Xendurance I am able to hit 6-7 no problem. I don’t feel tired or gassed. My heart rates still goes up. My knees certainly still hurt too lol.
I’m hoping to keep the success going forward and be back to long runs.

Thank you for sharing your experience with Extreme Endurance. We are so glad to hear that you are now a believer in our product. It's always great to hear success stories from our customers! We hope that with continued use, you'll be able to reach your long run goals. Keep up the great work! Happy running!

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