Is there any harm in long-term exposure to red and blue light?

Modern people care a lot about wrinkles and acne on their faces. They believe that these are manifestations of human aging and will affect their appearance. Therefore, they try every means to deal with acne and wrinkles. The main technologies used include red and blue light irradiation to remove acne. This technology has been praised by many people. Are there any harms from long-term red and blue light irradiation? Let’s take a look at the simple explanation below.

Effect:

Red and blue lasers are a type of cold photon, which is not a laser in the strict sense. Red and blue light is a milder pulsed light. It is a non-invasive treatment that irradiates the skin for 20 minutes. The treatment process has no thermal effect, will not produce pigmentation, and generally has no side effects, which can avoid thermal damage to the skin. Therefore, red and blue light acne removal is harmless.

Red and blue light are pulsed lights and are relatively gentle. They can improve the overall skin quality. They mainly use the principle of selective photothermal absorption. They are more effective for pigmented acne scars and can promote skin metabolism. The entire skin will be improved after one course of treatment.

Red and blue light mainly target acne in the inflammatory stage. Blue light kills bacteria and reduces inflammation, while red light is anti-inflammatory and repairing. It mainly kills acne bacteria and has no harm to normal skin. Red and blue light acne removal is based on the blue light acting on the surface of the skin, killing Propionibacterium acnes and playing an antibacterial and anti-inflammatory role. It can also effectively inhibit the secretion of sebaceous glands and prevent the recurrence of acne; while red light can pass through the surface tissue of the skin, act on scar tissue, and promote cells to secrete collagen to remove acne marks and repair acne scars.

Side effects (harms):

With the popularization of computers and other electronic products, some people are addicted to the Internet for up to seven or eight hours a day, or even more. Over time, the blue light radiation from electronic products will cause damage to the skin, causing accelerated aging, sagging, and pigmentation.