FAQ blue light therapy


Blue light therapy is a noninvasive treatment for acne that uses light to kill certain bacteria on the skin. Blue light is a part of visible light. It has a very important role in how our body adapts to light and dark cycles. Our modern lifestyle has increased our exposure to blue light. Not all colors of light have the same effect. Blue wavelengths—which are beneficial during daylight hours because they boost attention, reaction times, and mood—seem to be the most disruptive at night and can disturb sleep. The proliferation of electronics with screens, as well as energy-efficient lighting, is increasing our exposure to blue wavelengths, especially after sundown.* Despite these negative effects, the appropriate use of blue light has several therapeutic benefits.

*Harvard Medical School Health Letter

Keep reading below (Lien Hypertexte?) to learn more about blue light therapy.

A form of phototherapy, blue light treatments are FDA-approved for acne vulgaris that is moderate or has not responded to other therapies.

Fast facts on blue light therapy:

  • Blue light therapy uses light in the blue wavelength range to kill the bacteria Propionibacterium acnes, or  acnes, on the skin.
  • There is no recovery time, and the treatment has relatively few, if any, adverse effects.

Studies show evidence for the efficacy of blue light treatments for people with mild to moderate acne