Radiofrequency beauty instrument is commonly used for wrinkle removal, which can be applied not only to the face, but also to the skin of other parts of the body with the same effect. The principle is relatively simple, heating the skin tissue, promoting the contraction and tightening of the subcutaneous collagen, while not causing overheating damage to the skin’s surface. Through the thermal energy acting on the dermis and part of the subcutaneous layer, the epidermis maintains a normal temperature, allowing the dermis of the skin to thicken, activating collagen and fibers, lifting and tightening, and achieving anti-wrinkle effects. Even where there are no folds, the RF beauty device can make the skin firmer. But radio frequency is also a kind of radiation, radiation will cause adverse effects on the human body, so many people will worry about using radio frequency beauty instrument will have side effects. At present, the frequency of the beauty salon and medical radio frequency instrument is more than 3MHZ, the frequency of the home radio frequency beauty instrument is between 0.5-1MHZ, the impact on the body is minimal, not only the body does not feel, the impact on health is also relatively small, most beauty lovers can use. However, this radio frequency has a certain stimulating effect on the skin, and may enhance the discomfort of the skin if it is for people with sensitive skin. In addition, pregnant women and people with cardiac pacing devices are advised not to use it because high frequencies can affect the fetus or the device inside the patient.