• Is light-emitting diode phototherapy (LED-LLLT) really effective?

BLUE & RED LED COMBO FOR ACNE

• Phototherapy with Light Emitting Diodes

RED LIGHT & NEAR INFRARED

• A study to determine the efficacy of combination LED light therapy (633 nm and 830 nm) in facial skin rejuvenation
• 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
• Low-level laser (light) therapy (LLLT) in skin: stimulating, healing, restoring
• 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
• A prospective, randomized, placebo-controlled, double-blinded, and split-face clinical study on LED phototherapy for skin rejuvenation: Clinical, profilometric, histologic, ultrastructural, and biochemical evaluations and comparison of three different treatment settings
• Photodynamic photorejuvenation of the face with a combination of microneedling, red light, and broadband pulsed light
• Efficacy and Tolerability of Phototherapy With Light-Emitting Diodes for Sensitive Skin: A Pilot Study
• Phototherapy with Light Emitting Diodes: Treating a Broad Range of Medical and Aesthetic Conditions in Dermatology
• Effect of NASA light-emitting diode irradiation on wound healing

RED & GREEN

• In summary, LLLT by red and green LED light increased migration and proliferation of endothelial cells consistently in several independent models.
• Green light emitting diode irradiation enhances fibroblast growth impaired by high glucose level

YELLOW

• https://www.news-medical.net/health/Does-LED-Therapy-Improve-Skin-Condition.aspx