Stevia Has been widely used in the food industry and pharmaceutical industry as Sweetener, additive and flavor correction agent, cosmetics industry is used in Toothpaste sweetener. 2. Stevia extract can be used in hair growth products Instead of Changdiodin. 3. the inhibitory effect of stevia extract on melanocyte Activity showed that it was a more effective whitening additive for cosmetics Than kojic acid. 4 Stevia extract can play a role in preventing dermatitis or Eczema.