Ultrasound has been used for fat measurement since 1965. It is becoming one of the most promising methods for body fat layer measurement, especially for SAT (subcutaneous adipose tissue) measurement. Muscle ultrasonography is simple, accessible, reliable, low-cost, and non-invasive technique that could be used to assess the muscle mass.
Ultrasound Technology & Intelligent algorithm measurement. Ultrasonic waves with high frequencies over 20,000 Hz have the characteristics of directional propagation, reflectivity, and non-invasiveness. Therefore, it is often used for human ultrasound imaging examination.
Sound is a vibration that travels as an acoustic wave in a medium (such as a liquid,gas or solid). All vibrations, including sound, have a frequency, which is a measure of how often it vibrates per unit of time. The frequency unit is hertz (Hz). Humans with normal hearing can hear sounds between 20Hz~20,000Hz.
I was initially skeptical about at-home devices, but this one delivered visible results within the recommended 4-week protocol. Using it just once weekly for 20 minutes while watching TV became effortless. By week four, my skin felt firmer with a more defined contour—like a subtle ‘lift’ without tightness. My colleague even asked if I’d lost weight! Ideal for anyone seeking gradual, natural-looking refinement.
At 58, I didn’t expect dramatic changes, but the lifting effect around my eyes surprised me. The gentle warmth feels therapeutic. Not a facelift replacement, but a worthy ally against mild sagging.
After consistent use for four weeks, I noticed my jawline appearing more defined, like a subtle "lift" without drastic changes. The effects accumulated gradually, with the most noticeable improvement around week three. My skin feels tighter but not stripped of moisture. Looking forward to the follow up results, so far it seems like a worthwhile investment.
As someone prone to redness, I appreciated how gentle the device felt during daily use. No irritation or overheating, even on my cheeks. While the results aren’t overnight, my skin texture has smoothed out over time. It's also easy to stick with once a week and I'll stick with it to keep using it to see what happens!