Unfortunately, not enough evidence is present to support the effectiveness of ultrasonic treatment without the introduction of a fluid into the target fat layer. I have yet to find peer-reviewed studies pointing to its effectiveness.
Although I can’t declare that ultrasonic cavitation doesn’t work, I can say with confidence that the evidence that exists is just not adequate. More studies, specifically peer-reviewed ones, need to be published before plain ultrasonic treatment alone (even that with adequate ultrasound frequency) can be deemed just as effective as its counterparts, namely hydrolipoclasy and external UAL.
Dr. Stef dela Cruz writes about cancer, weight loss, and other health issues. She uses both stethoscope and pen to help patients achieve optimum health. Follow her on Facebook or Twitter; she is perennially online.