What is the specific function of a freshener in skincare?

The specific function of a freshener in skincare is to restore the natural pH after cleansing. When you cleanse your face, you may alter the skin's natural pH balance, especially with certain cleansers that can be more alkaline. A freshener, which is typically a lightweight, watery solution, helps to bring the skin back to its optimal pH level, which is around 4.5 to 5.5. This restoration is important for maintaining the skin's barrier function and overall health, as the skin's natural acidity helps to fend off bacteria and support healthy flora.

The function of exfoliating dead skin cells is usually associated with physical or chemical exfoliants, while moisturizers are designed to hydrate the skin. Sun protection is provided by specific products with SPF. Each of these has different formulations and purposes, making the freshener distinct in its role of pH restoration.