Style Your Success: Rock the 2026 Red Seal Hairstylist Exam!

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In hair terminology, what does "porosity" refer to?

The ability to hold style

The ability to absorb moisture and chemicals

Porosity in hair terminology specifically refers to the hair's ability to absorb moisture and chemicals. This characteristic is significant because it impacts how the hair reacts to various treatments such as coloring, conditioning, and styling. High porosity means that the hair can absorb moisture quickly but may also lose it just as fast, often leading to dryness and increased damage. Low porosity indicates that the hair is more resistant to absorbing moisture, which can make it harder for products to penetrate and deliver benefits effectively. Understanding porosity allows hairstylists to select appropriate products and treatments tailored to the individual hair type, ensuring healthier and more manageable hair.

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The thickness of the hair strand

The amount of natural oil produced

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