Toner is a liquid skincare product used after cleansing the face. Its primary purpose is to remove any remaining impurities and balance the skin's pH levels. Toners can also help to tighten pores and prepare the skin for further treatments, such as serums or moisturizers. There are various types of toners, including hydrating, exfoliating, and astringent formulas. Some toners contain ingredients like witch hazel or rose water for soothing effects, while others may include acids like salicylic acid for exfoliation. Choosing the right toner depends on individual skin types and concerns.