LED lights safer, more effective in producing Vitamin D3 than sunlight

(UV) LED is more efficient than sunlight at producing vitamin D3 in skin samples. Tyler Kalajian and his research team, led by Dr. Michael F. Holick, Ph.D., M.D., and supported by Boston University School of Medicine and a Boston University Ignition Award, found that skin samples exposed to RayVio's UV LED for just 0.52 minutes produced more than twice as much vitamin D3 as samples exposed to 32.5 minutes of sunlight.

"We tested ultraviolet LEDs from different sources and at differentwavelengths. RayVio's 293nm LED showed the most significantpotential for vitamin D3 production in the shortest amount of time," said Dr. Holick, a Professor of Medicine, Physiology and Biophysics atBoston University School of Medicine, and endocrinologist at BostonMedical Center