Low dose of narrow-band ultraviolet B lamp for improving vitamin D synthesis with minimum skin damage

摘要

The Vitamin D synthesis mainly takes place in skin after solar exposure of UVB, but usually the solar exposure dose is not adequate with modern daily activity. Thus, it is a novel solution to develop home-use UV health lamp to compensate the vitamin-D deficient. In this study, a low dose and narrow band UV-B lamps was developed for animal study. The lamp design was based on arrangement of UV-B light bulbs, band pass filters and electric-mechanical devices. The vitamin D synthesis of mice under various irradiation conditions was observed and analyzed. The experimental results show that the UV light with a wavelength of 310-320 nm can effectively improve the vitamin D synthesis and minimize the skin damage.