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Why hair curled?

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Anonymous

∙ 17y ago
Updated: 8/17/2019

Hair is curly or straight, depending upon the number of disulfide bonds between hair proteins found in the hair shaft. The greater the number of links, the curlier the hair, and the fewer the number of links, the straighter the hair.

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Wiki User

∙ 17y ago

What else can I help you with?