St. John's SC27 is a unique, patent-pending supercritical extract of St. John’s Wort. St. John’s Wort is recognized for its ability to safely and naturally support positive emotional health. Scientists have extensively studied St. John's Wort to determine which of its constituents has the ability to modulate or balance brain chemistry. Scientists have now determined that a class of phytonutrients called "hyperforins" are most responsible for St. John's Wort's beneficial effects. New Chapter's St. John's SC27 provides a broad spectrum of supercritically extracted, highly stable and concentrated hyperforins.