What is the primary function of a toner in skincare?

The primary function of a toner in skincare is to balance the skin's pH. After cleansing, the natural pH of the skin can be disrupted, often becoming more alkaline due to the ingredients in many cleansers. A toner helps to restore the skin's pH to its optimal level, which is typically slightly acidic. This balancing act is crucial as a properly balanced pH can enhance the effectiveness of other skincare products, improve skin barrier function, and promote overall skin health. Toners often contain various ingredients designed to help refine pores and prepare the skin for subsequent treatments like serums and moisturizers.

While toners can offer additional benefits such as hydration or mild exfoliation, the core role remains in pH balance. Other options listed, such as removing makeup, hydrating the skin, or providing sun protection, relate to different products or functions that are not primary to a toner’s purpose.