Age-proofing protection for your mind One of the most powerful “anti-aging” herbs in the world Standardized to a minimum 2% THSG content Regarded as one of the most powerful “anti- aging” herbs in the world, Fo-Ti is currently being researched for its potential benefits on nerve function and cognition. These studies focus on the active component THSG (tetrahydroxystilbene-glucoside), which appears to protect the delicate structure of neurons. Researchers believe this action may help defend the brain to help preserve our capacity for learning and memory. Swanson Superior Herbs Fo- Ti Extract is standardized to a minimum 2% THSG content for guaranteed potency.