What is a permanent wave hair treatment; What does it do exactly?

A permanent wave is a process in which hair is strategically wrapped in rollers, then saturated with a solution that will transform your hair follicle into a different shape. Your hair will take on the curl size of the roller in which it was placed. Perms help achieve more body and a stronger wave pattern to the hair than would be achieved naturally. The exact results are very dependent on roller size, hair porosity and process used. Salon AKS