Zuvi created the patented LightCare™ technology that uses infrared light and high-velocity air to dry moisture from the surface of the hair, allowing the inner cortex to retain up to 109% internal moisture instead of drying strands with high heat that can damage the hair shaft. We've spent More than five thousand hours are spent rigorously testing (and re-testing) our products to ensure that each one lives up to our standards and our ethos: innovative products dedicated to making your life easier.