In addition to featuring ingredients that are scientifically proven to keep the immune system healthy, we also introduced game-changing AHCC® — a patented mushroom extract of cultured Lentinula edodes mycelia — to our formula. Over 30 human clinical trials and more than 100 published papers worldwide have shown that AHCC® helps to treat and prevent illness, satisfying your search for an all-encompassing supplement that works the way nature intended.