How should the hair be prepped before a perm?

To prepare the hair for a perm, it is crucial that the hair is clean and towel-dried. This step helps ensure that any product buildup, dirt, or oils are removed, allowing the perm solution to work effectively on the hair. Clean hair absorbs the perm solution better, leading to more uniform curls and reducing the risk of uneven results. Towel-drying allows for excess water to be removed without making the hair too dry, which is important for the chemical process that occurs during perming. Proper preparation is a key factor in achieving the desired outcome of the perm.