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Immune Boost

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    Comprehensive Multivitamin for Men and Women

    Immune Boost is a powerful, immune support formula packed with vitamins, minerals, antioxidants, phytonutrients and advanced bioavailability to help build a healthy, strong immune system. Antioxidants and minerals are crucial in helping to fight free radical damage and oxidative stress, which help guard against the effects of aging. Immune Boost has additional free radical, cell protection in the form of acai fruit, broccolic sprout and curcumin. Bioperine is added to increase absorption of these nrf2 activators and further provide maximum benefits.

    Immune Boost also helps protect your eyes from blue light retina damage with science backed ingredients, lutein and zeaxanthin, at research dosages.*

    • Vitamins - research dosages of essential nutrients to help nourish cells, tissues and body organs*
    • Minerals - assist immune system and provide steady nutrient support for eyes, bones, and body tissues*
    • Antioxidants & Phytonutrients - helps fight damaging oxidative stress caused by free radicals and assists the immune system*
    • Contains effective research dosages of Lutein and Zeaxanthin to help protect eyes from damaging blue light*
    • Informed-Sport & Informed-Choice Certified**


    Have you ever had a burning sensation in your muscles during intense exercise? This is a signal that your body is being deprived of oxygen - and lactic acid is being created. When your body produces lactic acid, it splits into two ions; lactate ions (lactate) and hydrogen ions (H+) . H+ is the acid in lactic acid. Intramuscular Acidosis – The pH (acid) is not due to lactate but rather the production of H+ which is part of the process of energy released from the breakdown of glucose. As H+ are released, intramuscular pH goes acid leading to fatigue and creates the burning feeling in your muscles during intense exercise. 


    What exactly is this elusive VO2 Max, why is it important to know, how is it measured, and how can you improve your VO2 Max? VO2 Max is the maximum amount of oxygen you can consume that goes to the working muscles. In short, we need oxygen to survive and perform daily living activities, not just during exercise. If we want to use oxygen more efficiently by increasing VO2 Max, activities such as nutrition, movement, and breathing all need to be taken into consideration for improvement. We all want to breath better and stronger!



    The same process that causes a car to rust, plays a similar corrosive role in our bodies. It is called oxidation. Oxidative stress is essentially an imbalance between free radical production vs antioxidants. Antioxidants constantly fight to neutralize free radicals, thereby improving cell function. Oxidative stress can damage cells and contribute to the aging process. Oxidative stress may also play a role in several diseases such as cancer, Alzheimers, and diabetes. The goal should be to flood your body with powerful antioxidants and ward off the effects of free radical damage in the body. 


    Health is a daily consideration. Or should be! Whether you are looking for performance, anti-aging or recovery, Extreme Endurance should be taken daily. This proprietary combination of ingredients should be consistently released into your system twice a day for ongoing support. 
    It starts working 48-72 hours after you take it and the science shows the longer you take Extreme Endurance, the greater the benefits. Take it daily!


    Immune Boost is much more than just a multi-vitamin. Packed with vitamins, minerals, phytonutrients, and antioxidants this product is backed by years of research on combating oxidative stress and free radical damage that is the leading cause in many degenerative diseases.




    25% off all products, apparel and accessories for a full year.



    No matter the order size, receive free shipping anywhere in the US and Military APOs



    We partnered with some of the best brands to give you even more discounts. See what Whoop, PerformaSleep and Nike Training Club have to offer!


    When looking to supplement your diet, it is important to focus on what is most bioavailable. Minerals, in general are hard to absorb.  Chelated minerals are bound to compounds such as amino acids or organic acids and then the body “smuggles’ them into your system. Chelated minerals are meant to boost your absorption of those minerals. This type of mineral is very expensive but Xendurance has always concentrated on using ingredients that are the most bioavailable.

    Most of us spend a great deal of time in front of computer screens and digital devices and there is concern about the effect it may play on our eye health. There are over 600 known carotenoid antioxidants which play critical roles in our biological systems. Only two are found in the macula of your eye. Immune Boost contains effective research dosages of these two carotenoid antioxidants, Lutein and Zeaxanthin, which have been proven to help protect eyes from damaging blue light.* 

    Oxidative stress is an imbalance between free radicals and antioxidants in your body. Free radicals can cause large chain chemical reactions in your body called oxidation. When there is an imbalance between free radical activity and antioxidant activity, the oxidative stress may be harmful. Cell damage, inflammation and oxidative stress are thought to be the leading cause of aging and degenerative diseases.


    Think of leaving your car out in cold weather where it will eventually rust without the protection of a warm garage. Immune Boost is there to help protect your body from that rusting effect.


    Immune Boost supports healthy aging by providing over 25 powerful antioxidants, phytonutrients and nrf2 activators to help protect your body cells, tissue and your cell’s DNA. The Immune Boost formula also supplies the body with the nutrition needed to help fight inflammation.

    Yes, we recommend you take your daily dose of Immune Boost with food in your stomach.