A: When you tan at an indoor tanning facility, your skin produces a tan the same way it does when you lay out in the sun: through ultraviolet (UV) rays. There is one important difference, however. When you are out in the sun, you cannot control the amount of UV rays you are exposed to, because it is affected by changes in the atmosphere. Indoor tanning is one way to regulate the amount of UV light you are exposed to, because it is a controlled environment. You can gradually increase your exposure time to make sure you don't get sunburned, which is harmful to the skin. Indoor tanning, if you can develop a tan, is an intelligent way to minimize the risk of sunburn while maximizing the enjoyment and benefit of having a tan. We call this SMART TANNING because tanners are taught by trained tanning facility personnel how their skin type reacts to sunlight and how to avoid sunburn outdoors, as well as in a salon.