Full Spectrum St. John's Wort Extract combines a standardized hypericin extract (0.3%) with a flavonoid-rich (4:1) concentrate of flowering tops, in order to capture the broadest array of constituents associated with St. John's wort's positive effects. Each tablet is standardized to yield a minimum of 1.0 mg of pure hypericin, thereby delivering a guaranteed dosage as outlined in clinical trials, along with secondary compounds known to have beneficial activity.