What is the primary purpose of using a toner in skincare?

The primary purpose of using a toner in skincare is to balance the skin's pH. The skin's natural barrier has a slightly acidic pH, which can be disrupted by factors such as cleansing and environmental stressors. Using a toner helps restore this balance, ensuring that the skin is in optimal condition to absorb subsequent skincare products like serums and moisturizers.

Moreover, a properly balanced pH can support the skin's natural functions, including its ability to fend off bacteria and maintain hydration. While toners can have varying benefits—such as adding hydration or helping to remove residual makeup—their fundamental role is to re-establish the skin's pH equilibrium after cleansing. This makes it an essential step in many skincare routines for promoting overall skin health.