Supports mental relaxation and moodPromotes nervous system health by serving as a component in healthy neurotransmittersLike it's companions in the B-complex family of nutrients, inositol is important to neurotransmitter functions: It serves as a base component for a variety of chemical messengers and helps influence the activities of others like serotonin. For this reason, inositol is used as a supplement for nervous system health and mental/emotional wellness. Because it requires relatively large doses to achieve results, many people prefer an inositol powder to traditional capsules. And, of course, Swanson is here to answer the call. By popular request, we're introducing 100% pure Inositol Powder. It's sweet and contains nothing but pure inositol. Just mix it in your favorite beverage—it's easy to customize our dose to meet your personal needs. Each canister contains over one month's supply when used as directed.