Nutricost's Premium Red Ginseng is an extra strength - 1000mg serving size. Korean Ginseng, also known as an immune support herb, naturally contains beneficial components gingenosides. Gingenosides are bioactive factors that play a role in the body's well-being. Gingenosides are also what helps enable Korean Ginseng's ability to support the body's rejuvenation and revitalization process in order to make the most out of its natural energy.