Nowadays there are many different types of toner, and each one treats a specific issue. This product should be applied after cleansing, and helps eliminate any dirt/sebum/makeup residue, rebalances the skin's natural acidity, and prepares it for subsequent treatments (essence, serum, moisturizer, etc.). In addition, it hydrates the skin, and depending on the ingredients in its formula, it helps treat a specific problem: in fact it can have anti-aging, purifying, soothing properties, etc. In reality, toner is not an essential step in a skincare routine, but I personally really like using it every day because I see that my skin benefits from it. 😊