Which therapy is described as wave therapy?

The correct answer is ultrasound therapy, as it is often described as wave therapy. This type of therapy utilizes high-frequency sound waves that penetrate the skin, resulting in deep tissue stimulation. Ultrasound therapy can promote collagen production, improve circulation, and facilitate healing in various skin conditions. The waves emitted during this therapy create mechanical vibrations that aid in tissue regeneration and overall skin rejuvenation.

The other therapies listed have distinct mechanisms. High-frequency current involves using electrical currents to stimulate the skin, while microcurrent utilizes low-level electrical currents for facial toning and muscle re-education. Laser therapy, on the other hand, employs concentrated light beams for various purposes, including hair removal and skin resurfacing. Each of these therapies plays a unique role in aesthetic treatments, but ultrasound therapy specifically involves the application of sound waves, which makes it the fitting option for the description of "wave therapy."