Jean-Yves Dionne, B.Sc and Sherry Torkos, B.Sc, provide the latest scientific research on St John's Wort, the mental-health power plant. Find out about hyperforin, the active antidepressant ingredient in St John's Wort. This concise, informative booklet also includes practical information about depression, mood-balancing nutrients, and lifestyle factors that can help keep you on track.
