How do UVB rays stimulate vitamin D production in the skin

Sep 13, 2017 ... This LED was found to be 2.4 times more efficient in producing vitamin D 3 in human skin than the sun in less than 1/60 th the time. UV radiation is the main cause of melanoma and other skin cancers such as basal cell carcinoma and squamous cell carcinoma. Phototherapy, also called light therapy, means treatment with a special kind of light, such as narrowband ultraviolet B (UVB) light used to treat eczema. The meaning of UVB is radiation that is in the region of the ultraviolet spectrum which extends from about 280 to 320 nm in wavelength and that is primarily ... Sep 12, 2019 ... In this article, we'll take a closer look at the key differences between UVA and UVB rays, how they affect your skin, and what you can do to limit sun damage. May 29, 2024 ... Ultraviolet (UV) light can harm your eyes and raise your risk of cataracts, growths on the eye and cancer. Follow these tips to protect your ... Sep 1, 2009 ... UVB rays damage superficial skin cell layers, causing sunburn. UVC rays, the shortest, are considered harmless, since most UVC light is ... UVB facts and risks · UVB penetrates and damages the outermost layers of your skin. Overexposure causes suntan, sunburn and, in severe cases, blistering. · UVB is ... Jul 26, 2022 ... UVB rays are more high energy than UVA. They can only penetrate the outermost layer of the skin. Abstract. Vitamin D is the sunshine vitamin for good reason. During exposure to sunlight, the UV B photons enter the skin and photolyze 7-dehydrocholesterol to ...