Herbal Factors Standardized Potency St. John"s Wort (Hypericum Perforatum Clusiaceae) is full spectrum, containing guaranteed levels of .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. St John"s Wort (Hypericum perforatum) is probably the most thoroughly researched herbal anti-depressant available. Eminent European physician Rudolf Fritz Weiss recommends it for treatment of restlessness, anxiety and depressive moods.1 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 anti-depressant 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