What is blue light?

Just as your child learns in school, sunlight is made up of red, orange, yellow, green, blue, indigo and violet light. When combined, it becomes the white light we see. Each of these colors has a different energy and wavelength. Red light rays have longer wavelengths and less energy, where on the other end, blue light rays have shorter wavelengths (between 380 - 500 nm) and more energy.



There are two types of blue light. Natural blue light comes from the sun. Our body uses blue light from the sun to regulate our natural circadian rhythm (sleep and wake cycles), boost alertness, elevate your mood, and improve your overall feeling of wellbeing. Artificial blue light comes from digital screens like TVs, computers, smart phones, iPads, fluorescent and LED lights. READ MORE