Rebiana

Rebiana is the trade name for high-purity rebaudioside A, a Steviol glycoside which when used as a non-nutritive sweetener is 200 times sweeter than sugar. It is the primary source of sweetness in the Truvia sweetener brand. According to the Truvia website, Rebiana is derived from Stevia leaves by steeping them in water similar to making tea, and the extract is then concentrated. Cargill has filed patents which give it exclusive rights to sell Rebiana in beverages.