What is the purpose of skin toner?

The purpose of skin toner is primarily to hydrate and balance the skin's pH. After cleansing, the skin can sometimes feel tight or stripped of its natural oils, and a toner helps restore moisture and re-establish the skin's natural acidity. Toners often contain astringent properties that can help remove any remaining impurities or oil, but their main function is to prepare the skin for subsequent applications of serums and moisturizers, ensuring better absorption and efficacy. Additionally, maintaining the skin's pH is important for overall skin health and can help prevent irritation or breakouts.

While some toners may assist in removing leftover makeup residues, that is not their primary function. Exfoliation is generally achieved through different products specifically designed for that purpose, such as scrubs or chemical exfoliants. Sun protection is typically provided by sunscreens rather than toners, as they contain specific ingredients designed to shield the skin from UV radiation. Thus, the focus of a toner is on hydration and pH balance.