Research published in Scientific Reports on September 2017 showed that light from RayVio’s 293nm ultraviolet (UV) LED is more efficient than sunlight at producing vitamin D3 in skin.
Vitamin D deficiency results into osteoporosis, rickets, and other metabolic bone diseases. It is more prevalent in northern and southern latitudes where sunlight is limited for a significant part of the year. This device is ideal for patients with fat malabsorption syndromes including inflammatory bowel disease and gastric bypass surgery. In U.S. around 75% of teens and adults are vitamin D deficient.
Research team led by Dr. Michael F. Holick, Ph.D., M.D., Boston University School of Medicine reported that skin samples exposed to RayVio’s UV LED for 0.52 minutes produced more than twice as much vitamin D3 as samples exposed to 32.5 minutes of sunlight. “RayVio’s 293nm LED showed the most significant potential for vitamin D3 production in the shortest amount of time,” said Dr. Holick, a Professor of Medicine, Physiology and Biophysics at Boston University School of Medicine and endocrinologist at Boston Medical Center.”
A vitamin D3 producing UV LED device could be used on skin areas that experience less exposure to sunlight such as upper legs and arms and abdomen and back thus minimizing risk for developing non-melanoma skin cancer. The UV LED device also emits a much narrower band of UVB light and thereby decreasing likelihood of skin damage that can occur when the skin is exposed to higher wavelengths of UV radiation. About Vitamin D3 Two forms of vitamin D are important to humans: vitamin D2 produced by plants, yeast and mushrooms, and vitamin D3 produced by skin when exposed to sunlight or the appropriate wavelength of ultraviolet light.
According to Phototherapy Equipment Market report published by Coherent Market Insights, phototherapy, also known as light therapy, involves exposing the skin to ultraviolet light under medical supervision. Narrow-band UVB (NBUVB), Ultraviolet A (UVA)/NBUVB (in combination), and PUVA (psoralen+UVA) are the common types of phototherapy used. Work of the research team from Boston University Photonics Center on UV LEDs may soon see innovative treatment options such as simple integration with a wearable device.