An extensive Materia Medica includes monographs on 25 adaptogens, including eleuthero, ginseng, rhodiola, schisandra, ashwagandha, shatavari, reishi, and holy basil, as well as complementary nervines, restorative tonics, and nootropic herbs, such as milky oats, astragalus, St. John's wort, and ginkgo.