Immune Support Mushroom Mycelia Extract Supports Healthy Immune Cell Function A Dietary Supplement Vegetarian - Vegan General Health Family Owned Since 1968 GMP Quality Assured AHCC (Active Hexose Correlated Compound) is a unique extract produced from specially cultivated and hybridized mushrooms. Clinical studies have demonstrated AHCC's ability to support a healthy immune system function and cell cycle regulation. AHCC has also demonstrated potent free radical scavenging properties, as well as the ability to promote proper liver function.