Iowa Cosmetology Practice Exam

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Study for the Iowa Cosmetology Exam. Prepare with flashcards and multiple choice questions, each question offers hints and detailed explanations. Get ready to ace your exam!

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What can be broken and reformed with perm solution?

Salt bond
Hydrogen bond
Disulfide bond
Ionic bond

The correct answer is: Disulfide bond

The perm solution works by breaking down disulfide bonds in the hair, which are responsible for the hair's natural shape and structure. This allows the hair to be reformed into a new shape when the perm solution is applied, creating curls or waves. Salt bonds, hydrogen bonds, and ionic bonds do not play a role in the perming process and thus would not be broken and reformed with perm solution.