One of the most important investments you can make for your skin is the daily use of a sun protection product. The SkinCeuticals In Sun line includes a variety of high performance SPF products that help protect the skin against sun damage. The sun is the number one cause of premature aging of the skin so it is vital to use sun protection every day, even on cloudy and winter days. SkinCeuticals In Sun utilizes natural mineral sunscreens so as to reduce the risk of irritation on sensitive skin types. Unlike mineral products of the past, SkinCeuticals In Sun minerals are micronized to look more natural on the skin.