Liquid Super Echinacea creates a unique tingling or buzzing sensation in your mouth. The feeling comes from a four-part blend of plant parts of Echinacea purpurea plants. Herb Pharm grows its own Echinacea on its own farm as a perennial. The leaf and flower are hand-harvested in summer. The seed and root are hand-harvested in the fall. Each plant part is extracted individually with their own unique formula, then blended together.