Which hair perm kit is best? A hair perm, short for permanent, is one of the easiest ways to change the look of your hair and keep it changed. While the perms’ peak popularity has passed, they’re ...

There are three types of perm methods: alkaline, acid, and exothermic. The latter two are part of the "hot" perm treatment process, which means the solution is applied before heat. A "cold" perm uses ...