Arizona Cosmetology Practice Exam

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What effect does over-processing have on hair?

  1. Enhances natural shine

  2. Strengthens the hair structure

  3. Causes dryness and brittleness

  4. Improves color retention

The correct answer is: Causes dryness and brittleness

Over-processing refers to the excessive application of chemical treatments such as coloring, perming, or relaxing hair. This can lead to significant damage because these processes break down the hair's natural proteins and moisture balance. When hair becomes over-processed, the cuticle layer, which protects the inner structure of the hair, can become weakened or lifted, leading to an inability to retain moisture. As a result, the hair often becomes dry and brittle, making it more susceptible to further damage and breakage. This condition also affects the overall texture and appearance of the hair, leading to a lack of shine and a rough feel. Therefore, associating over-processing with dryness and brittleness accurately captures the detrimental impact it has on hair health.

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