Anti-inflammatory properties of narrow-band blue light.

This study showed that narrow-band blue light has anti-inflammatory effects on keratinocytes by decreasing the cytokine-induced production of IL-1alpha and ICAM-1. In addition, blue light demonstrated synergistic effects with low-dose UVB light. These results expand the properties of narrow-band blue light in modulating the inflammatory process and will facilitate testing of its phototherapeutic applications in different inflammatory skin conditions.