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    Xendurance is a sports nutrition company that was established in the United States in 2006, when the Xendurance (Extreme Endurance in the United States) formula was under development.

    The parent company, Xendurance LLC, is located in Arizona. The goal of Xendurance LLC was to develop an all-natural, drug-free product that would improve an athlete's performance by improving both the aerobic threshold and the lactic acid threshold.

    Xendurance also wanted to develop a formula that would safely reduce the culprit known as lactic acid.e.

    Xendurance X FOOTBOKS®

    In partnership with FOOTBOKS, Xendurance provides quality products..

    Xendurance products have been validated by FOOTBOKS, its team and its sponsors..

    The Xendurance brand was discovered with its energizing gels » in the boxAugust 2021 Footboks so the composition was as follows:

    All these products are available individually inFootboks shop!


    Informed-Sport is a quality assurance program for sports nutrition products, suppliers to the sports nutrition industry and supplement manufacturing facilities.

    The program certifies that all nutritional supplements and/or ingredients that bear the Informed-Sport logo have been tested for banned substances by the world-class sports anti-doping laboratory, LGC.

    About the company

    Lifespan International has recognized that athletes not only benefit from performance products, but also need to protect their health and immune systems from the trauma of rigorous training programs. With this in mind, Xendurance LLC is continually expanding its product line, comprised of multivitamins, omega and joint formulas, protein and electrolyte shakes, with unique science-backed formulas.

    What sets Xendurance apart from other sports nutrition companies is that our flagship product, Xendurance, has been studied in two published, Gold-Standard, third-party, double-blind, placebo-controlled, crossover studies. Many companies make substantial claims about individual ingredients, but Xendurance has been researched on the complete formula, not just the ingredients. Third-party testing is also important because it means that Lifespan International did not know or did not hire the facility that conducted the testing, and therefore no bias influenced the results of the test. study.e.

    Xendurance was the first American-made sports nutrition product to be certified drug-free by HFL; INFORMED SPORT, the world renowned sports doping laboratory.

    Xendurance continues to provide research and studies that prove its products.

    Xendurance continues to be at the forefront of utilizing this science and achieving success in providing sports nutrition to athletes in all sports, regardless of their level of participation or performance.