It is always a good idea to change your foundation once it starts to get colder. Summer time is great, because you don't have to wear much foundation. I always suggest that you change to a tinted moisturizer for summer, but enough about summer! Fall is in the air, YEAH!!! Once you start to see your golden tan fade and you are looking a bit pale you'll need a little help to get color by foundation. My favorite foundation is Neutrogena Healthy Skin. (I use 30 buff )Don't go all crazy and buy a darker shade of foundation that will not match your skin tone. When you are looking at foundation, and you want to go a little darker than your skin ( which we are naturally drawn to) pick a shade lighter. You'll be happy that you did. Remember to test foundation on your neck not your hand and always buy foundation with sunscreen in it, winter sun is just as harsh as summer sun. If you are lost with which brand to buy, I promise you will not be disappointed with Neutrogena health skin.