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LED Light Therapy Cheat Sheet

What are the different colors of LED therapy? What do they do? How do they help my skin?

All your questions answered! 


Wavelength (nm)


Effective treatment for

Features & benefits

380-450nm Violet
  • Pigmentation
  • When used alone showed an increase in melanin level (not statistically significant). However, in combination with red light showed a statistically significant decrease in melanin level.
450-495nm Blue
  • Mild to moderate acne
  • Eczema
  • Psoriasis
    • Kills bacterial cells
    • Reduces the reproduction of human sebocyte (cells that make up the sebaceous glands and secrete sebum)
      495-570nm Green
      • Pigmentation
      • Balancing skin tone
        • Improves redness, pigmentation, and skin tone
        • Effectively treats freckles and liver spots
        • Reduces swelling
          570-590nm Yellow
          • Skin rejuvenation
          • Pigmentation
          • Wound healing
            • Reduces redness, swelling, and other effects related to pigmentation
            • Reduces healing time and erythema for acute wounds
              590-620nm Orange
              • Anti-aging
              • Acute burns
                • Results in softer skin texture and reduction in roughness & fine lines
                • Decreases burning, redness, swelling and peeling
                  620-750nm Red
                  • Rosacea
                  • Psoriasis
                  • Anti-aging
                  • Mild to moderate acne
                  • Androgenetic alopecia
                    • Reduces inflammation
                    • Enhances collagen, improves skin roughness, and wrinkle status
                    • Results in fewer wrinkles and improved skin elasticity
                    • Inhibits sebum production
                    • Improves hair growth
                      750-1300nm Near-infrared (NIR)
                      • Rosacea
                      • Psoriasis
                      • Wound healing
                        • Wound healing 


                        All claims are supported by clinical studies and references:

                        Avci P, Gupta A, Sadasivam M, et al. Low-level laser (light) therapy (LLLT) in skin: stimulating, healing, restoring. Semin Cutan Med Surg. 2013;32(1):41‐52.  Electromagnetic Spectrum. Introduction to remote sensing. Accessed June 11, 2020.  Jagdeo J, Austin E, Mamalis A, Wong C, Ho D, Siegel DM. Light-emitting diodes in dermatology: A systematic review of randomized controlled trials [published online ahead of print, 2018 Jan 22]. Lasers Surg Med. 2018;50(6):613‐628.  Lee MW. Combination 532-nm and 1064-nm lasers for noninvasive skin rejuvenation and toning [published correction appears in Arch Dermatol. 2004 May;140(5):625]. Arch Dermatol. 2003;139(10):1265-1276.  Serrage H , Heiskanen V , Palin WM , et al. Under the spotlight: mechanisms of photobiomodulation concentrating on blue and green light. Photochem Photobiol Sci. 2019;18(8):1877-1909.  Sorbellini E, Rucco M, Rinaldi F. Photodynamic and photobiological effects of light-emitting diode (LED) therapy in dermatological disease: an update. Lasers Med Sci. 2018;33(7):1431‐1439.  Wunsch A, Matuschka K. A controlled trial to determine the efficacy of red and near-infrared light treatment in patient satisfaction, reduction of fine lines, wrinkles, skin roughness, and intradermal collagen density increase. Photomed Laser Surg. 2014;32(2):93-100.