Hypericum 0.3% 300 mg 90 Veg Caps - Hypericum Extract 0.3% from Vital Nutrients features the extract from the popular herb commonly known as St. John's Wort (Hypericum perforatum). Hypericum has a long history of use, dating back to ancient Greece, and has been extensively studied in Europe and more recently been researched over the short-term in the United States. Hypericum is used to promote emotional health and maintain normal mood. Hypericum may support a healthy outlook with seasonal changes.