First of all, of course, safety comes first

Although LED is very safe, if the quality is not up to par, long-term use will not only fail to achieve the therapeutic effect but may also cause damage to the skin.

This is also universal and applies to any type of beauty device or even skin care products.

If you want to become more professional, you can also learn to read parameters.

First look at the wavelength. For example, some studies have found that blue light around 420nm can be used to treat acne; around 453nm can improve eczema and psoriasis; red light around 655nm can treat hair loss; red light around 630nm can be used to increase skin elasticity and reduce wrinkles; and near-infrared light around 830nm and 850nm can be used to treat acne. Used to brighten skin tone.

The second thing is to look at the light intensity, which is the irradiance. The optimal clinical irradiance is about 50–100 mW/cm². Pay attention to it when buying the machine and grasp the distance between the skin and the lamp. If the irradiance of the machine itself is 50mW/cm², then you should stick to your face as much as possible If the machine is 200mW/cm², then keep a distance of 10-25 cm from the machine. It is also necessary to control the use time to achieve a certain dose, 2mW/cm² x 500 seconds = 1J/cm², between 1-60J/cm² is appropriate. So just operate according to the scheduled time of the machine.

It is not particularly important whether it is mixed wavelength light or single wavelength light, pulsed or continuous light emission, because different results have been found in different literatures and there is no consensus.Regular LED beauty instruments are safe, intolerance rarely occurs, and the use method is also convenient and simple.

The disadvantage is that the effect is not that obvious. Only by consistent use can you see a slight increase in skin elasticity, a slight reduction in fine lines and a translucent skin care effect. It will not make you look very different all at once, and the effect is better than that of radiofrequency. Be relatively slower.

It is more suitable to be used as an auxiliary treatment, such as combining with traditional acne treatment methods to help inhibit bacteria and oil control; combining with microneedling, radiofrequency, and laser to synergize and promote damage repair.

#3 ROS Concerns

A fan in the fan group asked a particularly profound question. She said that blue light, red light and infrared light will produce reactive oxygen species. According to the latest skin care concepts, only by insisting on using active ingredients that can prevent these "harmful" light can effective reversal be achieved. age. Will long-term use of LED beauty devices promote aging?

This is a very good question. Let me use this review to say a few words. Light is a double-edged sword, it can promote aging and it can also treat it. The key is speed.Long-term accumulation of excessive reactive oxygen species in the body can lead to disease and aging. However, reactive oxygen species are also important signaling molecules in the body, participating in the regulation of multiple pathways. High concentrations of reactive oxygen species can also kill pathogens.

Therefore, the ideal situation is to control active oxygen at a level that allows it to function without disrupting body functions. When viruses, bacteria invade, or even tumors develop, let it burst out in the required parts to treat the disease.

Therefore, as long as you strictly follow the usage method and frequency of the LED beauty instrument,  it will not cause any pro-aging side effects. It may also bring additional benefits such as improving sleep, promoting wound repair, and reducing pain.