Iowa Cosmetology Practice Exam 2025 - Free Cosmetology Practice Questions and Study Guide

Question: 1 / 400

What type of hair is typically more susceptible to damage from chemical treatments?

Curly hair

Thick hair

Fine hair

Fine hair is generally more susceptible to damage from chemical treatments due to its smaller diameter and lower density. Because fine hair has less structural integrity compared to thicker hair types, it tends to be more vulnerable to the effects of chemicals used in processes like coloring, perming, or relaxing. The cuticle layer, which is the protective outer layer of the hair, is often thinner in fine hair, making it easier for harsh chemicals to penetrate and potentially cause damage.

Additionally, fine hair can absorb chemical treatments more rapidly, leading to an increased risk of over-processing. This can result in issues such as increased dryness, brittleness, and breakage. Understanding this susceptibility is essential for cosmetologists, as they can better tailor their methods and products to ensure the health and integrity of fine hair during chemical treatments.

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Coarse hair

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