How to choose a beauty device?

Inspired by the radio frequency tightening devices found in medical aesthetic centres, the home use of radio frequency aesthetic devices is one of the most talked about categories on the market. Whether for home use or for medical aesthetics, consumers are no longer unfamiliar with "radiofrequency devices". The gel used to lubricate and lower the surface temperature of the skin is evenly applied to the face and then the radio frequency head of the machine is used to emit radio frequency to enter the superficial layer of the dermis and heat it up, thus playing a role in promoting skin renewal.

We can often see the "multi-pole", "bipolar" or "circular radio frequency" advertised in the home radio frequency instrument, referring to the way the radio frequency is emitted. So, the less the radio frequency instrument emitting head the stronger the energy, thus the better the effect? Not really. "All these emission methods are evolved from the simplest bipolar RF, to ensure that the RF stream produces the corresponding circuit, not that the fewer the poles the higher the energy," Li Kai pointed out, "but rather with multiple groups of RF stream emission, often can appear the so-called mutual resistance effect of the RF stream, the effect of The depth of action will instead be deeper. A simple bipolar RF is relatively weak."

One of the things that makes a home RF device that meets national quality and safety standards a better safety guarantee is that because of the home RF device's built-in temperature control device, this allows the RF to automatically stop firing when the skin surface temperature reaches 42-43 degrees Celsius, thus avoiding "burns" and local "facial depressions This prevents problems such as "burns" and localised "sunken faces". "When the skin surface temperature reaches about 42 degrees Celsius, the maximum temperature inside the dermis is about 46 degrees Celsius and no higher, which is actually a relatively safe temperature and will not cause necrotic scar-like changes in collagen or liquefaction of fat," said Li Kai, "Safe and compliant home radiofrequency machines usually don't cause this problem."

Proper handling remains important. Two principles are recommended for the use of home radiofrequency devices. The first is to ensure that heat builds up, which means that a relatively constant temperature is maintained in the operating area. For example, keep the temperature of the epidermis in a certain area between 40 and 42 degrees, and then perform repeated gliding operations on this area. The second is to work in a "lifting" direction, for example from the inside out, from the bottom up, etc.