Digital perm, maybe you’ve heard it called an Ionic Perm, sometimes it’s called a Spiral Perm, Japanese Perm, Korean Perm, or else a Hot Perm? It’s the same process involving perming your hair with hot-rollers which are connected to a heating system. The hot-rollers are part of this giant machine that can intimidate many first time permers. It looks like something out of Star Trek. Because the rollers are hot they can’t be brought too close to your scalp or it will get burned, but this also means that only the bottoms of your hair will be permed.
The biggest difference between other perms and a digital perm is the shape and the texture of the wave created by the digital process. A normal perm, or “cold perm,” makes the wave most prominent when the hair is wet, and loose when it is dry. The hair tends to look moist and as locks. A digital perm makes the wave most prominent when the hair is dry, and loose when it is wet. Therefore you can create the dry and curly look of the curl iron or the hot curler.
Digital perms thermally recondition the hair, though the chemicals and processing are similar to a straight perm. The hair often feels softer, smoother, and shinier after a digital perm.