Red light therapy uses specific wavelengths (630-850nm) to stimulate cellular energy production and collagen synthesis, with clinical trials showing 20-50% wrinkle reduction. This evidence-based guide examines what actually works based on 15 peer-reviewed studies.
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⚡ Quick Answer Red light therapy (photobiomodulation) uses specific wavelengths of light—primarily 660nm red and 850nm near-infrared—to stimulate cellular healing and regeneration: