St John's Wort

St John's Wort leaves and flowers are used medicinally. It is commonly used to reduce low- to mild-depression. Hypericin and hyperforin, the biologically active components of St John's Wort, act on the nervous system to regulate mood. St John's Wort may alleviate symptoms of depression-like disorders, such as Seasonal Affective Disorder (SAD) which occurs in winter months with low sunlight levels.