i have just purchased some pressd powder, and i am just woundering if you can just apply that to your face?or do you have to apply foundation first?if so does it change the color of foundation that you have allready applied, if the pressed powder is lighter?also the foundation i have is true match minerals so can you aplly both?or do you need to?

Usually, powder needs to be applied over liquid foundations. Also, powder needs to be a bit darker than the foundation. If you are using True Match Minerals, you should use it alone.