One session lasts one to two years. Firmness rises over two to six months and is clearest at around six, because collagen takes that long to build up while the heated areas heal. If thickness is measured before and after, you can compare the change as a number.

It is presented as including a function that measures skin thickness by ultrasound before and after, so the change can be confirmed as a number. The difference is being able to compare by figures rather than judging by eye alone. The underlying principle — heating inside the skin with RF — is the same family as Thermage and Oligio.

It feels hot during the session. That sensation comes from raising the temperature enough for collagen to contract, and the power is adjusted to stay within what you can tolerate. Downtime is mild at one to three days, and it is best to skip the sauna for a week while the heated areas heal.