I am an Independent Avon Representative. I have found the best way to choose a foundation is by using a color card to choose the color that most closely matches your skin tone. Once you have narrowed your choices to a couple of shade variations test a small amount on the top of your hand in the soft tendon area between your thumb and pointer. Be sure to blend them in well to get the full effect. Choose the best one for color match and texture.
There are alot of options out there for foundation. Avon has several that are self adjusting to match your skin tone. There are also the cream to powder ones that feel lighter than some other heavier liquid or soufle foundations.
Avon offers free samples and is the only make-up producer I know of that offers a money back guarantee within the first 30 days if you try a product and decide you don't like it.
My Avon web store is www.youravon.com/rmallory