Supports Healthy Immune System ResponseA Dietary SupplementVegetarian/Vegan How It Works: AHCC® is a unique extract produced by cultivation and enzymatic modification of the mycelia of the Basidiomycota group of mushrooms. Clinical studies have demonstrated that AHCC® may help support a healthy and balanced immune system response, as well as maintain healthy cell cycle function. AHCC® also has been shown to promote proper liver function as well as a healthy response to typical everyday stress.