LightTherapyIQ — Blue Light Therapy
Blue Light Therapy
Blue wavelengths (415–450nm) kill acne-causing bacteria at the skin surface, regulate circadian rhythm, and are used clinically for skin conditions and seasonal affective disorder.
Blue Light Therapy for Seasonal Depression: How It Works and What to Expect
Bright light therapy is a first-line treatment for seasonal affective disorder backed by decades of controlled trial evidence. Here's the mechanism, the protocol that works, and what doesn't.
Apr 24, 2026
Read →Blue Light Therapy for Acne: Evidence, Protocols, and Limitations
Blue light kills acne bacteria through a photochemical reaction with porphyrins. Multiple controlled trials support this mechanism. Here's what it works for, what it doesn't, and how it compares to established treatments.
Apr 23, 2026
Read →What Is Blue Light Therapy? Mechanisms, Applications, and Evidence
Blue light therapy uses 415–480nm wavelengths for two distinct clinical purposes: killing acne-causing bacteria and regulating circadian rhythms and mood. Here's how each works.
Apr 22, 2026
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