Hair stretches about what percentage of its length?

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Study for the Pivot Point Perm Theory 111 Exam. Prepare with flashcards and multiple choice questions, each with hints and explanations. Get ready for your exam!

Multiple Choice

Hair stretches about what percentage of its length?

Explanation:
Hair’s ability to lengthen under tension is its elasticity. Moisture makes hair more extensible because water temporarily breaks and reforms the bonds in keratin, allowing the strand to stretch further before it risks breaking. In typical cosmetology knowledge, hair can be stretched about 40–50% of its original length when wet, and less when dry. This range is why we handle hair with care during styling or chemical processes—exceeding it increases the chance of damage or breakage. So, the best answer is that hair stretches about 40–50% of its length.

Hair’s ability to lengthen under tension is its elasticity. Moisture makes hair more extensible because water temporarily breaks and reforms the bonds in keratin, allowing the strand to stretch further before it risks breaking. In typical cosmetology knowledge, hair can be stretched about 40–50% of its original length when wet, and less when dry. This range is why we handle hair with care during styling or chemical processes—exceeding it increases the chance of damage or breakage. So, the best answer is that hair stretches about 40–50% of its length.

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