Georgia Cosmetologist License Practice Exam

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How can ultraviolet (UV) rays affect hair?

They can make hair shinier

They can cause hair to become brittle and fade color

Ultraviolet (UV) rays can cause hair to become brittle and fade color due to their high energy, which leads to the breakdown of the hair's structural proteins. Hair is primarily made up of a protein called keratin, which can be damaged by UV exposure. This damage manifests as dryness and brittleness, making hair more prone to breakage.

Additionally, UV rays can also alter the chemical bonds within the hair strands, resulting in changes to the hair's natural color. For colored hair, these rays can break down the dye molecules, leading to a significant fade in color that can make the hair look dull and lifeless over time. Therefore, while UV rays are essential for certain biological processes, their detrimental effects on hair health and appearance highlight the importance of protecting hair from excessive sun exposure.

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They can improve hair moisture levels

They have no effect on hair quality

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