The frequency of using a facial toner depends on the ingredients in the toner, skin type, and the purpose of the toner. Face toners for sensitive skin containing gentle and soothing ingredients may be used up to 2 times daily in the morning and/or evening. If you have sensitive skin and are using a toner for face with active ingredients such as salicylic acid or glycolic acid, you can start by using a toner 2-3 times a week until you’ve gradually built up a tolerance for everyday use.