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Blue Light Acne Therapy

  • The porphyrins within the sebaceous
    follicles absorb the blue light most effectively at 405 to 415 nanometer wavelengths.

  • Blue light excitation leads to photo-excitation of porphyrins for subsequent release of singlet oxygen and reactive free radicals that has an antibacterial effect on acne bacteria.

  • Blue light has also been shown to exert anti-inflammatory effects in keratinocytes.

  • Blue light is also being used in combination with pharmacological and/or physical measures to synergize their effects and optimize the therapeutic outcome.


Acne can be a side effect of testosterone replacement therapy or of anabolic steroid use.


Acne vulgaris is sensitive to hormonal influences. Historical and physical clues that may suggest hormone-sensitive acne include onset between ages 20 and 30; worsening the week before a woman’s menstrual cycle; acne lesions predominantly over the jawline and chin; and inflammatory/nodular acne lesions.

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