Colorado Cosmetology Written Practice Exam

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Prepare for the Colorado Cosmetology Test. Study with detailed flashcards and multiple choice questions, each featuring insights and explanations. Gear up for success!

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Hair colors containing metal salts that change hair color gradually by progressive buildup and exposure to air are called:

Permanent hair color
Progressive hair color
Semi-permanent hair color
Temporary hair color

The correct answer is: Permanent hair color

Progressive hair color (B) is incorrect because it is the name of the method in which the hair color changes gradually, not the name of the hair color itself. Semi-permanent hair color (C) is incorrect because it uses chemical dyes to deposit color onto the hair, while the hair colors containing metal salts act as a gradual buildup and exposure to air. Temporary hair color (D) is incorrect because it washes out after a few shampoos, whereas permanent hair color (A) does not wash out and stays on until hair grows out or is chemically altered.