What is toner ? the original toner was an alcohol-based product that was used to dry up oily skin and remove any leftover following cleansing. Today’s toner formulas are more advanced than ever, it is not only as of the second cleansing but also as a supplement of nutrition for the skin, these thin liquids can deliver extra energy to your skin. Whether your skin is sensitive and looking for soothing, acne-prone and needing excess oil removal, or dry and thirsting for moisture, the right toner can help you out.