There is damage.
Laser in the removal of diseased tissue at the same time, there is damage to normal tissues, the most common is the legacy of superficial scars, hypopigmentation (white spots) or hyperpigmented spots, especially scarred people should be more cautious. All, from this can see, laser cosmetic hazards also exist.
Laser cosmetic principle is through the tissue attraction of high-energy laser produced by the photothermal reaction, so that the local temperature in a few seconds to rise abruptly to hundreds of degrees or higher. Due to the rapid heat, water is seriously lost, and the tissue undergoes coagulative necrosis, or even carbonization or vaporization.
Expanded information:
Treatment effects of different lasers:
1. Pixel Laser Skin Resurfacing. Because a person's skin begins to damage and grow old, often due to a person's long-term exposure to ultraviolet radiation, which slowly causes degeneration and necrosis of the cells and leads to, so through the pixel laser skin resurfacing can be smoothed aging skin, so that the skin becomes more white and elastic.
2, red light health care skin. Red light and biological activity light this official website degree is relatively high, the light source is very strong, the energy is also relatively density uniform, so the effect is better in the skin care and health care treatment. A lot of beauty salons are through this red light treatment of aging skin, improve the wrinkles of the skin, so that the skin becomes smoother.
3, blue light treatment for acne. Because acne is mainly caused by the action of Propionibacterium acnes, and the blue light with a wavelength of 415nm can destroy this bacteria efficiently and minimize the formation of acne, so nowadays acne can be treated well with blue light very effectively.
People's Daily News - The dangers of doing laser cosmetic surgery
People's Daily News - Who can do laser cosmetic surgery? What are the therapeutic effects of different lasers