It feels like a warm massage. You have to warm up the skin to 40 to 42 degrees Celsius (body temperature is 37 degrees Celsius), and that takes a certain amount of energy. Some patient’s maintain heat and it only takes 30 minutes to get to that temperature, but some patients take an hour, because they are sensitive to the heat. It’s uncomfortable heat, but it’s not painful. We put mineral oil on the skin to promote the easy gliding of the handpiece. It’s like a rotating ball on the tip that delivers the heat. The other handpiece is a little bigger with balls that rotate.