1.100% natural, no calories, dissolves easily in water. 2.Food grade ... 250-450 times more than sugar. 3.White powder. Specifications:100% Natural Stevia Pure Extract Reb-A 40%,Reb-A 50 ... -A 97%,Reb-A 98%;Function:No aftertaste or bitterness...100% free of artifical colors, flavors, sweeteners and preservatives..No sideeffects, ideal ...