Photobiomodulation (PBM) using organic light-emitting diodes has attracted much attention in biomedical applications. However, therapeutic effects and cytotoxicity of PBM using organic light-emitting diode (OLED) have not been addressed in vitro and in vivo. In this study, the cytotoxicity and skin care effects of OLED lighting modules according to RGB wavelengths were compared with light-emitting diode (LED). Skin care effect of OLED and LED was demonstrated by observing suppression of Nitrogen Oxide production, decrease of melanin synthesis and increase of collagen production.
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