| What kind of sweetener is used in Effervé? In Honey Effervé, honey is the sweetener. 12% of acacia honey is enough to sweeten Effervé. This is one of the most natural forms of sugar! If you want more details about honey Effervé, please click here. In Caramel Effervé, caramel is the sweetener. The other Effervé flavors are sweetened with beet sugar. |