Doctor s Best Magnesium provides a daily dose of high absorption magnesium without the gastrointestinal distress.* This superior formula with 100% chelated lysinate glycinate magnesium absorbs effectively to support muscle relaxation and optimum nerve function.* At Doctor?s Best we lead with science. Our products are backed by research and crafted using pure ingredients carefully sourced from around the globe. Since 1990 we have dedicated ourselves to providing highly effective nutritional supplements that enable you to live a healthier lifestyle. We want nothing more than to see you and your family thrive!