Red Seal Cosmetology Practice Exam

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Prepare for the Red Seal Cosmetology Exam. Our quiz features engaging multiple-choice questions and detailed hints to help you master essential concepts for your examination. Gear up for success in your cosmetology career!

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What elements make up human hair?

CHONS
COHNS
COSHN
HONCS

The correct answer is: COHNS

Human hair is primarily made up of the protein keratin, which is composed of carbon, hydrogen, oxygen, nitrogen, and sulfur. Therefore, the correct element order is C-H-O-N-S, making option B the correct answer. Option A is incorrect because the elements are not listed in the correct order. Option C is incorrect because it has an extra "S" at the end. Option D is incorrect because it has "HON" which is not in the correct order.