LED stands for light-emitting diode. These lights have been in use since the 1960s, but people have only recently begun to use them as a skin treatment.

NASA originally developedTrusted Source LED lights for plant growth experiments in space.

However, since then, LEDs have shown promising results in wound healing and human tissue growth.

Different wavelengths of light in LED lights, including blue and red, penetrate the skin at different depths. This penetration may trigger biological processes that help the skin rejuvenate and heal.

Blue light

Experts believe that blue LED light reduces activity in the sebaceous glands, which are small oil-producing glands in the skin. This reduction in activity causes the glands to produce less oil, possibly improving acne symptoms.

Blue light may also kill a type of bacteria that contributes to acne by causing inflammation.

Animal researchTrusted Source indicates that blue light can improve the healing of third degree burns.

Red light

Red LED light may improve scarring and signs of aging, such as wrinkles. It may do thisTrusted Source by acting on fibroblasts, which are skin cells that are responsible for collagen production.

Collagen is a protein in the skin and other connective tissues. It plays a role in skin healing. The body produces less collagen as a person ages, which causes the skin to show signs of aging.

Red light also reduces skin inflammation.

LED light therapy can help treat a variety of skin problems, including:

  • acne
  • dermatitis
  • dull skin
  • eczema
  • psoriasis
  • rosacea
  • scarring
  • signs of aging, including wrinkles and age spots
  • sun damage
  • wound healing
  • other inflammatory skin conditions

One of the main benefits of LED light therapy is its safety record. According to researchTrusted Source, LED light therapy has an excellent safety profile.

It does not contain UV rays, which can be harmful to the skin. Therefore, LED therapy is suitable for regular use.

Unlike chemical peels or laser therapy, LED light therapy does not cause burns. The treatment is also safe for all types and colors of skin.

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