Final answer:
Permanent hairstyles, or perms, involve using a chemical solution to break hair's disulfide bonds, allowing it to be reshaped and set into curls or straightened. This method has longer-lasting effects than temporary waves that only involve water and reshaping hydrogen bonds, which revert upon re-wetting.
Step-by-step explanation:
Type of hair that may be wrapped in perm solution versus water refers to the process of creating a permanent hairstyle or 'perm.' During this procedure, chemicals are applied to the hair, which is subsequently wrapped around forms to either curl or straighten the hair, depending on the desired outcome. This contrasts with a temporary wave, where water disrupts hydrogen bonds in the hair, allowing it to take a new shape as it dries. Temporary waves cannot maintain their structure for as long as perms because they do not involve chemical changes to the hair's structure.
With permanent waving, the chemical solution breaks disulfide bonds in the hair's keratin structure, allowing hairstylists to reshape the hair. Once the hair has been set on rollers, a neutralizing agent is used to rebuild the disulfide bonds in the new shape, making the style last several months.