Very useful. It is similar to the principle of massage. Stimulate subcutaneous fat and promote fat metabolism through the vibration depth of the face-lifting stick. But don't expect it to be very useful. Unless you have an edematous face, it looks much smaller because it is firm after shaking off the water, otherwise it won't have much effect. After all, fat is not so easily broken down by a little vibration from the outside.

I have used a similar face-lifting machine, and the effect is not great. Comfortable is quite comfortable. Skin-beautifying effect is greater than face-lifting effect.