THE 'SECRET WEAPON' GIVING ATHLETES AN EDGE

★★★★★ 4.68/5.0 (2759)+ Reviews
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Proven In

12 Clinical Studies

Recover Faster Icon

Recover Faster

Fights free radical damage & supports crucial cellular functions

Stamina Increase Icon

Stamina Increase

Push your limits to go the distance, fight fatigue and set PRs

Increase Power Icon

Increase Power

Increase power output by 10-25% with a similar heart rate

Deeper Breaths Icon

Deeper Breaths

Increase VO2 Max & Aerobic Threshold. Perform better for longer.

Reduce Lactic Acid Icon

Reduce Lactic Acid

Extreme Endurance reduces lactic build up after intense workouts

Age Slower Icon

Age Slower

Promotes anti-aging by reducing damaging oxidative stress

Scientific Backing

Published Clinical Research

Validated by peer-reviewed studies and presented at international medical conferences.

Journal of Athletic Enhancement Research Article

Journal of Athletic Enhancement

The Effects of 10 Days of a Multi-Ingredient Supplement on Performance Lactic Acid during Exercise and Post Exercise Muscle Damage, Oxidative Stress and Inflammation.

ENA Conference Vienna Austria Study

ENA Conference, Vienna Austria

Supplementation with athletic performance formula decreases lactate concentrations in trained athletes after exhausting incremental cycle ergometer test.

Trusted by

WORLD CLASS ATHLETES

Aimee Cringle

"Immensely helpful in my training volume leading up to the games this year"

Aimee Cringle
Crossfit Games Champion
Justin Medeiros

"The one product I take daily and recommend to everyone is Extreme Endurance."

Justin Medeiros
2x Crossfit Games Champion
Matthew Centrowitz

"I wish I knew about this sooner"

Matthew Centrowitz
Olympic Gold Medalist
Allie Wilson

"This really helped with my training for this year's trials"

Allie Wilson
Olympian
Danielle Brandon

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

Danielle Brandon
Crossfit Games Athlete
Josh Bridges

"I have been on this product for over 10 years and swear by it"

Josh Bridges
Former Navy Seal & Crossfit Games Athlete

Extreme Endurance is fully compliant and:

Informed Sport Certified

First US company to use trusted global testing method

Gluten Free Preservative Free

Safe for celiacs and no bad fillers

Zero Banned Ingredients

It's an all-natural, electrolyte mineral supplement

Made In The USA

Proudly made and owned in the USA

Extreme Endurance Compliance Graphics

Ingredients at Research Level Dosages

🛡️ Hormone-Free
🧪 Third Party Tested
🧬 Non-GMO

Calcium Carbonate

Serves as a key ingredient that strengthens muscle, bone, and heart function

Calcium Carbonate

Papain

Proteolytic enzyme derived from papaya—acts as a potent anti-inflammatory that reduces muscle soreness and damage after intense exercise

Papain

Magnesium

Supports muscle function, relaxation to prevent cramps, energy production through ATP activation, and reduced fatigue

Magnesium

Potassium

Helps prevent cramps and imbalances from intense sweating, aids in growth and faster recovery

Potassium

Catechins

Combats oxidative stress and free radical damage caused by intense exercise, helping protect muscle cells, reduce inflammation, support improved recovery

Catechins

Chromium / Selenium

Essential trace minerals, vital components for supporting growth, recovery, and metabolic health

Chromium / Selenium
For Elite & Aspiring Athletes

+2,600 5-STAR REVIEWS

Got my PR after 1week!
★★★★★

Got my PR after 1week!

"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!"

L H.
VERIFIED PURCHASE
It actually works tbh
★★★★★

It actually works tbh

"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 I just completed a half marathon two minutes under my goal time is amazing!"

Tiffany F.
VERIFIED PURCHASE
I was skeptical
★★★★★

I was skeptical

"I've been really surprised at the benefits that this supplement has provided. I was skeptical but it's a game changer from my perspective."

Greg P.
VERIFIED PURCHASE
Won't go without it
★★★★★

Won't go without it

"I can honestly say you won't find anything better out there to help you out with lactic acid and soreness. I workout 7 times a week and it's been in great part thanks to this!"

Jose T.
VERIFIED PURCHASE
Amazing
★★★★★

Amazing

"This product is amazing! Did my first Ironman with it and I didn't even feel that very tired afterwards. Recovery was amazingly fast!"

Ron B.
VERIFIED PURCHASE
Got my breath back
★★★★★

Got my breath back

"Whichever discipline I was training in I was finding myself gasping for air. Since starting Xendurance I havent had issues with catching my breath, my runs have improved to where they should be."

Brandon C.
VERIFIED PURCHASE

VS. The Competition

BENEFITS Organic Extract OTHERS
Unbiased & rigorous scientific research
Reduces lactic acid by 26%
Reduces oxidative stress by 39%
Informed-Sport Certified
Proudly U.S.A made & owned

ALL NATURAL
PERFORMANCE
ENHANCER

Non-gmo, soy & dairy free, no artificial colors, flavors or artificial sweeteners, no caffeine or stimulants

ORGANIC EXTRACT

Servings Per Container 30
Serving Size 6 Tablets
Amount Per Serving
Organic Extract Proprietary Complex® 5100mg*

Calcium Carbonate, Papain, Magnesium Oxide, Potassium, Magnesium Hydroxide, Catechins, Selenium, Chromium, Black Pepper Fruit

Scientific Efficacy

Proven by rigorous scientific research and tested by unbiased 3rd parties.

State-of-the-Art Manufacturing

We only partner with Good Manufacturing Practice (GMP) certified and/or equivalent facilities.

Accessibility for All

We strive to make our product line available to athletes of all abilities!

Certified By Informed Sport

3rd party tested to guarantee free of banned substances

60-Day Guarantee
MONEY BACK GUARANTEE 60 DAYS
60-Day Guarantee Athlete

FREQUENTLY ASKED QUESTIONS

How quickly will I see results with Oranic Extract?

Oranic Extract will be in your system and working within 48-72 hours. We can confirm this from 12+ years of clinical testing.

Can I take Oranic Extract with other supplements?

Oranic Extract can be taken together with almost every other supplement but you do not need to take any product containing Beta Alanine when taking Oranic Extract.

Do I need to take Oranic Extract with food?

You do not need to take Oranic Extract with food.

Is Oracnic Extract certified drug free?

Oranic Extract was the very first US sports nutrition supplement certified drug free by LGC; Informed Sport.


LGC is a world-renowned sports doping control and research laboratory, with over 50 years of expertise in anti-doping in sport. LGC has published over 300 scientific papers on methods for the detection of trace levels of substances that are prohibited in sport and has over 450 man-years of research into doping control.

LGC has been testing supplements and ingredients on behalf of reputable manufacturers and suppliers for over 15 years. It has tested tens of thousands of samples during this time and has also carried out a number of research studies to explore the prevalence of contamination with prohibited substances in products and ingredients.


LGC's research into supplements and contamination also includes several administration studies to investigate the levels of prohibited substances that could cause an athlete to fail a doping test. These have been published in peer-reviewed scientific journals. As a doping control laboratory, LGC works directly with sports authorities, national anti-doping organizations, and national governing bodies worldwide.

There are no NCAA approved supplement products. The NCAA does not approve supplements.
 Since 2007, Xendurance has had thousands of NCAA student-athletes take Xendurance products and rely on the Informed-Sport certification which is a global testing method for banned substances. 

Oranic Extract was the very first US sports nutrition supplement certified drug free by LGC; Informed Sport.


LGC is a world-renowned sports doping control and research laboratory, with over 50 years of expertise in anti-doping in sport. LGC has published over 300 scientific papers on methods for the detection of trace levels of substances that are prohibited in sport and has over 450 man-years of research into doping control.

LGC has been testing supplements and ingredients on behalf of reputable manufacturers and suppliers for over 15 years. It has tested tens of thousands of samples during this time and has also carried out a number of research studies to explore the prevalence of contamination with prohibited substances in products and ingredients.


LGC's research into supplements and contamination also includes several administration studies to investigate the levels of prohibited substances that could cause an athlete to fail a doping test. These have been published in peer-reviewed scientific journals. As a doping control laboratory, LGC works directly with sports authorities, national anti-doping organizations, and national governing bodies worldwide.

Do I need to cycle off Oranic Extract?

You don’t cycle with Oranic Extract. You take it consistently, like a multivitamin; for training, performance, heart-lung function, and for better body pH and alkalinity.

Can an athlete take Oranic Extract if under the age of 18?

We can then provide better guidance for the parent as to the experience we have seen with athletes using the product under the age of 18. We do not recommend anyone under the age of 14 use Oranic Extract.

When should you take Oranic Extract? What time of day?

The most important thing to remember when taking Oranic Extract is to take it consistently like you would a multivitamin. You can split the morning and evening dosage to the time of the day that works best for you. Ex; If you take it at 6 am and 5 pm, we encourage you to try to take it around 6 am and 5 pm everyday. You can take it with or without food.

Train Unfair Athlete

TRAIN UNFAIR

Stop making excuses. Recover faster and perform at your best.