... %, 80%, 90%, 95%,97%,98% GMP Factory Free sample 100% Natural Stevia ExtractName: Stevia P.E.Plant of Origin: Stevia rebaudiana ... 1985 and again in 1990 separately approved stevia as the natural sweetener and a supplement as sweetener agent for medicine applications ... Stevia. The sweetness is pure, cool and lasting and its natural sweetness resembles that of cane sugar. In comparison to cane ...