Several important points make the product, Extreme Endurance, a compelling story. First, this product is based on science.
Extreme Endurance (xendurance as known in the EU) is the only product in the world that has a Gold-Standard, third party, double-blind, placebo-controlled, crossover study – that has been published. We emphasize third party because it means that we, at Lifespan International, did not know who was testing the product. Many companies pay other companies to “hopefully” get good results – we hired a company to test Extreme Endurance that had no knowledge of Lifespan International or the product – and the results were off the charts with a 15% reduction in lactic acid and a double digit increase in aerobic threshold.
Jürgen Sessner, the lead researcher on the study and owner of Corpus Diagnostik, in Hilpotstein, Germany, was so impressed with the results of the 10-day study that he asked if he could do his own study using the active product on 5 of his pro-triathletes for a longer, 30-day study. He found in this second study that with a longer use of Extreme Endurance, there was continued improvement and an increase in VO2 Max and power output. All of his athletes wanted to stay on the product.
Second, the clinical results of our double-blind study were presented at the 6th Annual European Nutraceutical Convention in Vienna, Austria, March 13, 2010 and are published in the Clinical Journal of the European Society for Clinical Nutrition and Metabolism, (Vol 5, Supplement 1, 2010)
FRAN Open Label Study
Extreme Endurance takes on “FRAN” in an open-labeled test to once again prove the effectiveness of this re-known product.