1000mg of Organic Turkey Tail Mushroom 50:1 extract per serving. This product is non-gmo, gluten free, soy free, and vegetarian friendly. Easily add turkey tail mushroom to your daily regimen. Nutricost, located and headquartered in the USA, only uses the best ingredients for maximum quality and to help you feel your best! By keeping our supplement recipes simple and clean, you get the best experience possible with Nutricost. Our supplements are manufactured in a GMP-compliant and FDA-registered facility; and each batch of every product is tested by independent, ISO-accredited laboratories.