Be sure to wear a sunscreen everyday! As careful as I have been with my complexion, it is not something I have always done. Going about day to day life, I often used a foundation with an SPF of 15, but often I didn't. Now I know that you can prevent signs of aging by wearing a sunscreen year round, yes, even in the winter when all you do is hop in and out of your car to do errands. And remember, your foundation may have a sunscreen, but most people do not wear enough foundation to get true protection. The answer is a moisturizer with sunscreen and a foundation with sunscreen. Wear both - everyday - even in the dead of winter!