In cosmetics, skin toner or simply toner refers to a water-based lotion, tonic, or wash designed to cleanse the skin and prepare it for other skincare products, such as moisturizers and serums.[1] Typically used on the face, toners remove any remaining impurities after cleansing, balance the skin’s pH, and hydrate the skin.[2] They also serve to protect and refresh the skin,[3] often containing ingredients that can soothe, moisturize, exfoliate, or target specific skin concerns like oil control or pore minimization.[4] Toners are typically categorized by their function and intensity into types such as skin bracers, tonics, acid toners, and astringents.
Toners can be applied to the skin in different ways: