Virginia Cosmetology Practice Exam

Question: 1 / 400

What function does pH serve in hair care products?

It determines the color of the product

It affects the scent of the product

It determines the acidity or alkalinity of the product

The function of pH in hair care products primarily involves determining the acidity or alkalinity of the product. pH is a scale that measures how acidic or basic a solution is, with a range from 0 to 14, where 7 is considered neutral. In the context of hair care, the pH level can significantly influence the performance of the product on hair. For instance, products that are slightly acidic (generally between pH 4.5 and 5.5) help to smooth the hair cuticle, enhance shine, and reduce frizz. Conversely, products with a high pH, indicating alkalinity, may open the cuticle layer, making hair more porous and potentially leading to damage if used too frequently. Thus, being aware of pH levels in hair care products is crucial for achieving desired results and maintaining hair health.

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It controls the viscosity of the product

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