What is the difference between the red and blue light beauty instrument used in the hospital and the

　　Hospital Red and Blue Light Therapeutic Apparatus

　　The hospital has a red and blue light therapy device that is used to assist in the treatment of acne. The pathogenesis of acne is very complex and is related to many factors, such as androgen effect, hypersebaceous gland function, abnormal hair follicle sebaceous duct keratosis, and host immune response. Among them, Propionibacterium acnes played a role in fueling the flames.

　　The high-purity blue light can kill Propionibacterium acnes, thereby reducing acne.

　　Does household red and blue light have a better effect on acne?

　　This may not be necessary, just a simple comparison will tell.

　　The red and blue light therapy instrument used in hospitals, the blue light has a wavelength of about 415nm, which is the best wavelength to kill Propionibacterium acnes. The wavelength of blue light of home beauty equipment is 460nm, which has a weaker sterilization effect.

　　Why doesn't the home beauty instrument use blue light, which has a more sterilizing effect? This has to mention the damage of light to the skin.

　　Light can damage the skin, and the skin aging caused by it is called photoaging. We are familiar with ultraviolet rays, because of their higher energy, they have a greater impact on the photoaging of the skin. So, does the visible light that we can see have any effect on the aging of the skin?

　　The answer is yes, visible light can also make the skin age. The closer to the part of the purple light, the higher the energy, such as purple light and blue light, and the damage to the skin will be relatively greater. Therefore, if the higher energy 415nm blue light is used, it may cause a little light damage to the skin.

　　Before the hospital uses the red and blue light treatment device, after disinfecting the skin, first use the acne needle to pick up the pustules, and then place the red and blue light board at a distance of 1-4 cm from the skin surface. Each treatment is 20 minutes, red and blue light. alternately. Then 2 times a week, 8 times a month will have good results.

　　For the use of home beauty equipment, the official best distance is 10-30cm. From such a simple comparison, we can see that the home beauty instrument must have the effect of removing acne, but it is certainly not as effective as the hospital.

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What is the difference between the red and blue light beauty instrument used in the hospital and the

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