Refined Stevia extract powder is derived from the Stevia Rebaudiana plant which is native to Paraguay. The native Indians of the Guarani Tribe have used Stevia as a sweetener since the pre-columbian period. It was not first discovered and classified by scientist until 1887. The stevia leaf by itself is 8 - 10 times sweeter than sugar. Stevia exract is 200 - 300 times sweeter than sugar. According to some experts Stevia is known to not affect blood sugar. North American Herbal Products develops the Stevia powder into a 30 mg tablet that dissolves quickly in any beverage. One tablet is recommended per 8 - 10 oz. liquid drink or more for desired effect. Order Our Stevia Products Here