Without color; lacking characteristics which give variety. blank (Adjective). Free from writing, printing, or marks; having an empty space to be filled in; as, blank paper; a blank check; a blank ballot. blank (Adjective). Without expression.
Yes they do damage hair. Every time I have tried one ,I wound up looking like a Q-tip or my head looked like cotton. A perm will damage even more and look worse if you have been coloring your hair. There's chance of it looking okay if you don't color your hair.
When laser hair therapy treatments are used with quality conditioners, damaged hair, split ends and even dry hair begin to show improvement. The negative effects of chemical perms are reversed with the laser treatment program, because each strand of hair is nourished and repaired.