Facial toner helps to remove any oil, dirt, and makeup residue from your skin that may be left after you wash with a facial cleanser. This can help reduce the chances of your pores getting clogged, which often leads to breakouts and irritation. Face toner also helps to shrink pores and tighten cell gaps so that impurities and contaminants are less likely to penetrate your skin. Additionally, toner can help balance out your skin's pH levels, which can sometimes get thrown off after using alkaline soap or facial cleanser.