National Occupational Competency Testing Institute (NOCTI) Cosmetology Practice Exam

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What is a common use for a toner in skincare?

  1. To moisturize the skin

  2. To eliminate dead skin cells

  3. To balance the skin's pH

  4. To provide immediate hydration

The correct answer is: To balance the skin's pH

A toner is commonly used in skincare primarily to balance the skin's pH levels. The skin's natural pH is slightly acidic, usually around 4.5 to 5.5, and various factors like cleansing can disrupt this balance, especially if harsh or alkaline products are used. A toner helps to restore this equilibrium, which is essential for maintaining healthy skin function and can enhance the effectiveness of subsequent skincare products. While some toners may have additional benefits, such as providing hydration or mild exfoliation, their primary function revolves around pH balance. This is integral for skin health, as it can help prevent issues such as dryness, oiliness, or irritation, making the skin more receptive to moisturizers and treatments that follow.