Stevioside is extracted from compositae plant stevia leaves, it is natural, high sweet, low quantity of heat and safety sweetener.Stevia is known as "plant sugar king", "best natural sweetener", "the most promising future of sweetener" by The world health organization.JL stevia provides all kinds of stevia includes :medicinal Steviosin series; High purity Rebaudioside A( Reb-A); Enzymatically Modified Stevia series.