Why are ultrasound probes 1, 2, or 3 MHz and how do I choose a frequency?
If a vendor tries to sell you an ultrasound probe that contains different levels of frequency all in one device, it is most likely a FRAUD. Unless the device is an ultrasound device used for medicinal purposes (and selling for a few thousand dollars), it is very unlikely the device has 1, 2, AND 3 MHz settings. A more probable conclusion is that the different levels of power refer to high, medium, and low for a single frequency.1 MHz ultrasound waves permeate the deepest into tissue so it is for BODY use only. Since it is so powerful, it can damage your facial tissue if you use it on the face. For facial treatments, we recommend either 2 or 3 MHz. 3 MHz is used mainly on the face since it permeates the least deeply and 2 MHz can be safely used on both the face and body. Bellaire Industry is the only manufacturer of 2 MHz ultrasound probes so please do not be misled by other companies who claim to have 2 MHz ultrasound probes. When purchasing an ultrasound probe it is EXTREMELY importan
