Hypericum perforatum is sometimes called "common St John's wort" St. John's wort Medicinal Properties St. John's Wort is a tonic for the whole body. It is a gentle rather than a cathartic cleansing remedy that improves overall function and tone of the vital body systems. It strengthens and regulates the metabolism and tones the stomach, liver and … Continue reading Hypericum perforatum/St. Johnswort