The stevia concentrate powder used to make this liquid has a high percentage of rebaudioside A content. Rebaudioside A is the sweetest and purest tasting part of the stevia leaf. NO aftertaste!(Receive a FREE empty 30ml dropper with each bottle - Perfect for traveling)Ingredients: Stevia Concentrate Powder (High RebA content),purified water,Vitamin C and potassium sorbate.