Milady Cosmetology Practice Exam

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Prepare for the Milady Cosmetology Exam. Use flashcards and multiple-choice questions, each with hints and explanations. Get ready for your exam!

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What type of shampoo is known to leave hair dry and brittle?

Low-pH shampoo
Moisturizing shampoo
High-pH shampoo
Color-enhancing shampoo

The correct answer is: High-pH shampoo

High-pH shampoos are known for their alkaline properties, which can disrupt the hair's natural moisture balance. When the pH level of a shampoo is high, it raises the cuticle of the hair strand, allowing moisture to escape and leading to dryness and brittleness. This can result in damage over time, particularly for individuals with already fragile or chemically treated hair. High-pH shampoos can strip the hair of its natural oils, which contributes to these adverse effects. Conversely, low-pH shampoos are designed to close the hair cuticle and retain moisture, while moisturizing shampoos specifically aim to infuse hydration into the hair. Color-enhancing shampoos serve a different purpose, targeting the maintenance and enhancement of color-treated hair without necessarily impacting moisture levels. Thus, the characteristics of high-pH shampoos clearly associate them with causing dryness and brittleness in hair.