What is the effect of using a toner on the skin?

Using a toner on the skin primarily serves to balance the skin's pH. After cleansing, the skin's natural pH can be disrupted, especially if the cleanser is alkaline. Toners often have a slightly acidic formulation, which helps restore the skin's natural pH level, enhancing the skin's barrier function and promoting an overall healthier appearance.

Additionally, toners can prepare the skin to better absorb subsequent skincare products, such as serums and moisturizers. This pH balancing effect is crucial for maintaining the skin's integrity, as a balanced pH helps to inhibit the growth of harmful bacteria and maintain moisture levels. In this context, while there are many benefits to toners, their most fundamental role is to aid in correcting the skin's pH after cleansing.