I really stress the importance of having a professional exfoliation. We offer a few different methods—whether it is a peel or microdermabrasion�that offer beneficial results depending on the clients' skin and their concerns.
Most likely, it's not switched on. Just outside the door of each, you'll find a handy dial that activates the heat. (We avoid leaving them on all the time, because if we did, the resulting electric bills would require us to double our service prices.) Just flip it on and give it about 10 minutes to get sizzling.