Overview St. John’s Wort is a full-spectrum extract, containing guaranteed levels of 0.3% hypericin. Studies support the use of St. John’s Wort extract for improving mood and sleep, while reducing feelings of sadness or hopelessness. People with diagnosed clinical depression or on antidepressant medication should only use St. John’s Wort under the supervision of a health care practitioner. Medicinal Ingredients Each capsule contains: St. John's Wort (Hypericum perforatum) (aerial) 300 mg Standardized to contain 0.3% hypericin (900 mcg per capsule) Non-Medicinal Ingredients Rice powder, gelatin capsule (gelatin, purified water), vegetable grade magnesium stearate (lubricant), silica. Advanced Info St. John's wort (Hypericum Perforatum Clusiaceae) is full-spectrum, standardized potency containing guaranteed levels of 0.3% hypericin (the same potency that produced such excellent results in clinical studies) as well as pseudohypericin, and hyperforin, another important active that benefits people with depression and works synergistically with hypericin. Studies show that people taking St. John's wort have fewer feelings of sadness and hopelessness and they sleep better, without the side effects common to antidepressant drugs. St. John's wort is antibacterial and antiviral and ointments made with St. John's wort have been used for centuries to treat burns, bites and other wounds. The antiviral activity is being studied as a treatment for HIV infection, and experimental studies show that hypericin and pseudohypericin exhibit strong antiviral activity against herpes simplex virus types 1 and 2 and influenza virus types A and B. Other applications for St. John's wort include treatment of sleep disorders, eating disorders, anxiety disorders, bed-wetting, PMS, chronic tension headaches.