“It depends on how tight you go,” says Hersheson. “If you get super tight curls [known as a tight perm], they tend to drop out slower but you might get a line where you see regrowth.

Stylists share how to get curls for days. When you have a modern perm, all you'll have to do to get gorgeous body and texture is basically roll out of bed. A perm (short for "hair permanent") can ...