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A complete analysis of daily red and blue light exposure

January 17, 2025 Publisher:

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In the pursuit of health and beauty, people are constantly exploring various effective skin care and health care methods. In recent years, daily red and blue light exposure has gradually entered the public eye and has become a hot topic of concern. So, what exactly is this seemingly magical red and blue light exposure? 

Red and blue light is a low-energy phototherapy method that uses red and blue light of different wavelengths to act on the human body. The wavelength of red light is usually between 630-660 nanometers, which can penetrate deep into the skin tissue and promote cell metabolism. After absorbing red light, the mitochondria in the cells will accelerate the production of adenosine triphosphate (ATP), which provides sufficient energy for cell repair and regeneration. Therefore, red light helps to improve blood circulation in the skin, enhance skin elasticity, reduce the formation of wrinkles, and make the skin appear younger and healthier.

The wavelength of blue light is generally around 415-470 nanometers, and it mainly acts on Propionibacterium acnes in the skin. Propionibacterium acnes produces endogenous porphyrins during metabolism. Blue light can react with these porphyrins to produce singlet oxygen, thereby destroying the cell membrane of Propionibacterium acnes, achieving the effect of sterilization and anti-inflammatory, and effectively preventing and treating acne. 

For people who need to remove acne, it is very important to master the correct method of using red and blue light irradiation. Before irradiation, be sure to clean the facial skin first, remove dirt, oil and cosmetic residues, and keep the skin clean and refreshing, which is conducive to the light acting on the skin better. You can use a mild cleansing product, wash it with water and gently dry it.

Prepare a suitable red and blue light irradiation instrument and adjust it to the appropriate distance, generally 15-20 cm from the face, to ensure that the light can evenly cover the area to be treated. After turning on the instrument, irradiate with blue light first, because blue light mainly targets Propionibacterium acnes and can effectively kill bacteria and reduce inflammation. According to the time mentioned above, irradiate for 8-15 minutes each time. During the irradiation process, keep the face still to avoid uneven light irradiation.

After the blue light irradiation is over, switch to red light irradiation. Red light can promote the repair and regeneration of skin cells and help relieve skin damage after acne inflammation. Similarly, the irradiation time is controlled within 10-20 minutes. After the entire irradiation process is completed, the skin may feel slightly warm, which is normal. At this time, pay attention to skin moisturizing, and apply some mild moisturizing lotion or cream to avoid dry skin.

For daily skin care, red and blue light irradiation has many significant benefits. In the field of beauty, it can be used as a gentle and effective anti-aging method. Long-term adherence to red light irradiation can stimulate the production of collagen, make the skin firmer and smoother, and also help to improve dull skin tone and brighten skin tone. At the same time, combined with the anti-inflammatory properties of blue light, for people with oily skin and acne skin, daily appropriate red and blue light irradiation can regulate oil secretion, reduce the occurrence of acne, and prevent the formation of acne marks and scars.

However, there are also some things to pay attention to when performing daily red and blue light irradiation. First of all, choose the right irradiation equipment. There are many types of red and blue light irradiation instruments on the market, and the quality varies. Products produced by regular manufacturers and in compliance with safety standards should be selected. Secondly, the time and intensity of irradiation should be strictly controlled. Excessive irradiation may cause damage to the skin, such as dry skin, redness and swelling. Generally speaking, the irradiation time should not be too long each time. 10-20 minutes of red light irradiation and 8-15 minutes of blue light irradiation are more appropriate, and 2-3 times a week are sufficient. In addition, during the irradiation process, it is necessary to protect the eyes and avoid direct light exposure to the eyes. Professional protective glasses can be worn.

Daily red and blue light irradiation provides us with a convenient and effective way to care for the skin. As long as we correctly understand its principles and effects and use it reasonably, we can enjoy the benefits of red and blue light while avoiding potential risks, so that our skin can always remain healthy and beautiful. Whether you are pursuing skin firming and anti-aging, or people suffering from acne, you may wish to consider incorporating daily red and blue light irradiation into your skin care schedule to start your skin renewal journey.