AHCC® (Active Hexose Correlated Compound) is a proprietary extract produced from specially cultivated and hybridized mushrooms (Basidocymetes). People seeking improved immune system response; People with a need for tissue repair; People with oxidative challenges; People seeking to increase liver function. NK cells and the intercellular mediators they produce are critical for the maintenance of healthy cell cycle function. AHCC® has also been shown to possess antioxidant properties and support healthy liver function. URL: http://astronutrition.com/now-ahcc-immune-mushrooms-500-mg-60-vcaps.html Coupon Code: AHCC20 Expiration Date: December 22nd, 2015