Immune Boost is a complementary product to our Immune-C and Immune-D products. With ultra-pure green tea extract, it provides antioxidant support, supports a healthy immune system, regulation of hormones, and good gut health. Many health benefits can come from green tea, but most people aren't willing to consume the necessary 5 - 10 cups of tea a day to get these benefits. With a careful processing of this green tea extract, it is highly concentrated in order to capture many of the benefits equivalent to drinking the recommended amount everyday.