Astragalus root is a well documented immunostimulant, long used in Traditional Chinese a substance used in managing discomfort (TCM) for deep immune building. According to TCM, Astragalus has specific action on the lungs and is used to build Qi, the vital energy of the body. As a Beneficial Effectsative, it works to build defensive energy. Consumed as a food in China, Astragalus is one of the few medicinal herbs that can be taken daily as a Beneficial Effectsative or to restore depressed immunity over time. Note: According to TCM, Astragalus should be avoided during hot conditions such as fever. Available in a 1 oz. liquid.