Stevia Reb-A90% is all natural sweetener, white to light yellow powder, odorless or having a slight characteristic odor, approximately 400 times sweeter than sucrose. It contributes zero calories & zero carbohydrates to finished products. It is derived from Stevia leaves, powder in form. Stevia rebaudiana (Bertoni), grows in Paraguay and Brazil, where people have used leaves from the stevia bush to sweeten food for hundreds of years. In traditional medicine in these regions, stevia also served as a treatment for burns, colic, stomach problems and sometimes as a contraceptive