omg..Don't fall for sheercover. I saw the TV ad and was so impressed that i ordered right away. It probably is the crappiest foundation I have EVER bought..and trust me I buy a lot. They show you that it covers birth marks to this and that..and you can wear it your wedding..it doesn't cover anything at all.
If you are looking for mineral foundation..try the one by Merle Norman...that's my favourite...their ingredients are good and the coverage is amazing for being mineral makeup..hope that helps