Xendurance Extreme Endurance

Xendurance Extreme Endurance Helps to stop muscle burn and muscle trauma. Proven to substantially reduce Rhabdomyolysis (Rhabdo)*

During intense training, don’t just “hit the wall” with muscle burn and pain – BLAST through it with Xendurance Extreme Endurance, a revolutionary athletic performance formula. It’s clinically proven to reduce lactic acid by 15-26% and increase aerobic threshold by double digits.*

All ingredients are in compliance for IOC, NCAA, NFL, NBA, NHL and MLB. Every single batch of Xendurance Extreme Endurance is tested for banned substances by the world class sports doping control laboratory, LGC Group. In order to provide re-assurance that the product is suitable for use by elite athletes, the product is approved under the Informed-Sport and Informed-Choice programs.*

Xendurance Extreme Endurance Advantages:

  • Clinically Proven to Reduce Lactic Acid by 15-26%*
  • 39% Reduction in Oxidative Stress*
  • 6X lowering of CK (Creatine Kinase) Levels*
  • Speeds Recovery*
  • Improve Aerobic Threshold by Double Digits*
  • Benefits Within 72 Hours*
  • Reduces Muscle Soreness*
  • Certified Drug-Free*

Xendurance Extreme Endurance is a revolutionary athletic performance formula created by athletes for athletes. This formula has a published, Gold-Standard, third party, double-blind, placebo-controlled, crossover study backing up claims of 15% reduction in lactic acid and a double digit increase in aerobic threshold. Many companies make claims on individual ingredients but Extreme Endurance has a published study on the formula itself. Each batch of Extreme Endurance is tested to ensure that it is not contaminated with banned substances to provide additional reassurance for elite athletes.*

11/02/2016 Second Double-Blind, Placebo-Controlled Study Just Released
Scroll down to Clinical Test 4 and read about Xendurance’s newest study, completed at The University of Louisiana – Lafayette.
Results: 26% Reduction in Lactic Acid, 39% Reduction in Oxidative Stress and a 6X lowering of CK Levels.

Why is testing sports nutrition important?

P. Brown, C. Judkins, D. Hall, HFL Sport Science Ltd, Newmarket Road, Fordham, Cambridgeshire. CB7 5WW

As an athlete you already know the harder you exercise and compete, the more acid builds up in your muscles. Both your blood and muscle pH goes down into the dreaded acid zone. The increased use of muscle glycogen for energy produces lactic and pyruvic acid. Acidity reduces muscle power and reduces physical and mental endurance. You, your trainers and your coaches refer to this as lactic acid buildup or lactic acid fatigue. On the practice and playing field, it is also called “hitting the wall” or having the “bear jump on your back”. It’s simple. The harder you compete, the quicker you Go Acid! The Athlete who “Goes Acid” last, wins the competition.*

Intramuscular acidosis, is when your muscles have too much excess acid. This condition is caused by the production of H+ (Hydrogen ions) which is part of the energy released from the breakdown of glucose. As your muscles “go acid”, this creates fatigue and muscle burn, which you feel during intense exercise. The Extreme Endurance formula and physical chemistry of its 9 ingredients not only assures you that it will buffer production of H+ (Hydrogen ions) and help prevent the acid buildup in your muscles, but it has also been clinically proven to increase aerobic threshold so you can work harder for a longer period of time.*

Every athlete should know about proper pH balance. PH balance is critical to top athletic performance. PH is measured on a 14 point scale. The lower pH value range, such as stomach acid could average between 1.0 to 3.0. A pH value of 7 is neutral. The arterial blood pH value of a healthy human ranges around 7.35 to 7.45, which is slightly alkaline. As our body uses fuel and metabolizes food, we produce acid waste which is part of the process of energy release from the breakdown of glucose. The body has numerous ways to remove this acid waste or try to neutralize this acid buildup. Our kidneys filter blood and excrete acids through urine. Our lungs release carbon dioxide and we sweat acids out of our skin. We also have built in acid buffers to help neutralize pH imbalances like calcium, hemoglobin and phosphorous to name a few.*

Your body’s acid concentration increases as you produce lactic acid. Lactic acid is split into Lactate (Lactate ions) and Hydrogen ions. H+ (Hydrogen ions) is the acid in Lactic acid. Lactate is good and is an extremely fast fuel that is preferred by the heart and muscles during exercise. Lactate is vital for ensuring that your body gets a steady supply of carbohydrates. H+ (Hydrogen ions), the other half of Lactic Acid is not good, especially when the acid concentration exceeds the body’s ability to no longer neutralize or flush the waste from your body


Extreme Endurance is tested by the largest sports lab in the world. LGC, (Formerly known as HFL) is located in the UK and its testing of Extreme Endurance is done using gaschromatography with mass spectrometric detection (GCMS) and liquid chromatography with mass spectrometric detection (LCMS). In layman’s terms, – if you put one drop of a banned substance in an olympic size swimming pool, this testing would find it. It is costly, but we have many pros who can not afford to have their tests come up positive. LGC’s testing programs for athletes are called Informed Choice and Informed Sports.*

To summarize, there is not another product in the world that has a Gold-Standard, third party, clinical study, that has been published, and has been tested drug-free.*

Xendurance Extreme Endurance

Supplement Facts

Serving Size: 3
Servings Per Packet: 60

Extreme Endurance Proprietary Complex® 5100mg
Calcium Carbonate, Papain, Magnesium Oxide, Potassium, Magnesium Hydroxide, Catechins, Selenium, Chromium, Black Pepper Fruit

Extra Ingredients: Stearic Acid, Hydrogenated Cottonseed Oil, Magnesium Stearate


IF YOU TRAIN 5 to 6 TIMES PER WEEK, take 6 tablets daily; 3 in the morning and 3 in the evening, with or without food.

FIVE TO SEVEN DAYS BEFORE A RACE increase your dosage to 8 tablets a day; 4 in the morning and 4 in the evening and continue this 8 tablets for one day after the race and then drop back down to 6 tablets per day. We suggest this as it helps immensely with recovery.


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