Therapeutic Ultrasound is a method of stimulating tissue beneath the skin's surface using sound waves. It is a very high frequency massage that can penetrate up to 5" below the surface of your skin. The sound waves are of a very high frequency, typically between 800,000Hz and 2,000,000Hz. The sound can not be heard by humans or animals. Humans can only hear sounds up to about 20,000Hz. This very high frequency sound affects very small molecules though like medicines and cells in your body and actually causes them to move.
How ultrasound energy is transferred into the body is a function of many factors. The frequency of the ultrasound waves is actually opposite to how deep they will penetrate the body. A 1MHz ultrasound will penetrate about 4" below the skin whereas a 2MHz ultrasound unit will only penetrate about 2". While a low frequency means deeper penetration, using too low a frequency will mean that the waves are too wide to properly move the molecules. The frequency also has a significant impact on the phonophoretic properties of the ultrasound. Face mate Ultrasound has dual frequency, 1MHZ for deep penetration, and 3MHZ for skin and mesoderm.
Power output is another significant factor. It is measured in watts per square centimeter. The higher the power, the more energy is transferred into the body. If too high a power output is used and an ultrasound unit is left sitting still on the body, it is possible to burn the tissue beneath the skin. While several professional ultrasound machines are capable of these high powers, your medical practitioner will typically use a low power setting. More power is not necessarily better. Practitioners usually use a higher power to speed up treatment though it is actually more effective to use a lower power setting for a longer period of time. Your Facemate has 8 power levels, up to 15 minute timer for each function.