Abstract
Photomodulation is an athermal process that manipulates or regulates cell activity using light energy. Previous studies of a specific sequence or coded pulsed 590 nm LED photomodulation have shown the improvement of wrinkle, roughness, pigmentation, and erythema. The purpose of this study was to investigate the antiageing effects of continuous 630 nm red light LED for Japanese subjects, in their 20’s to 50’s. Pre- and post-treatment clinical photographs were taken using the Canfield imaging systems (VISIA II™), which simultaneously counted the characteristic numbers of wrinkles, roughness, hair follicles and pigmentation. The erythema level was also assessed before and after treatment using the Mexameter® (MX18, CK corp.). Two independent observers assessed the photographs and the data. Results showed the improvement of signs of sun-induced aging or environmental damaged skin. No side effects were noted. LED photomodulation is a safe and effective, pain-free and non-ablative modality for improvement of sun-induced aging or environmentally damaged skin in Asians.
