Contouring and highlighting?

ab

I don't know too much about make up, but is foundation used under the contour and highlight?

I have a highlight/contour cream kit and it usually gets really oily on my skin since I don't use anything under... I don't really see girls in tutorials apply the foundation before so I just always skipped it..

here's a pic showing what I mean. Is foundation applied prior to applying all the contour and highlight??