Indoor tanning uses UVA and UVB light (sunlight) to stimulate the production of Vitamin D, an essential component for life and health. Sunlight is the natural way to ensure our bodies have sufficient levels of Vitamin D. In norther climates, indoor tanning is the most effective and affordable ways to achieve the necessary levels of Vitamin D - better than supplements. And, of course, the second benefit is a beautiful tan that is achieved in a controlled envirnoment without the risk of over-exposure and sunburn.