Texas Cosmetology License Practice Exam

Question: 1 / 400

How does heat affect hair during styling?

It strengthens hair fibers

It alters the hair's shape and can cause damage if excessive

Heat during styling plays a crucial role in altering the hair's shape and texture. When heat is applied, such as through curling irons, straighteners, or blow dryers, the proteins within the hair undergo a change. Specifically, the keratin structure of hair is influenced by temperature; heat can cause the hydrogen bonds in the hair to break, which allows the hair to be reshaped. Once the hair cools down, these bonds reform, holding the new shape.

However, while heat can be beneficial in achieving various styles, excessive heat application can lead to damage. This damage may manifest as dryness, split ends, and weakened hair fibers, highlighting the importance of using heat tools with care and the potential for overheating, which can compromise hair health. Therefore, it's essential to balance the benefits of heat styling with appropriate techniques to mitigate the risk of damage.

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It makes hair more porous

It improves the overall health of hair

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