Virginia Cosmetology Practice Exam

pH stands for "potential hydrogen" and refers to the concentration of hydrogen ions in a solution, which determines its acidity or alkalinity. In the context of hair care products, understanding pH is crucial because it affects both the hair structure and the overall health of the hair. Hair products typically have a pH range that can be either acidic, neutral, or alkaline. For example, most hair care products are formulated to be slightly acidic, which helps to close the cuticle layer of the hair, making it shinier and preventing damage.

Using products with the correct pH level is essential for maintaining the hair’s integrity and enhancing its health. For instance, alkaline products can raise the cuticle, leading to frizz and damage, while acidic products can help keep the hair smooth and manageable. Thus, recognizing pH is significant for hairstylists and consumers alike to choose suitable products that promote healthy hair.