Hi there, I use this as an all over face bronzer instead of a contour and it works beautifully, even on my fair skin. It blends in really well so it doesn't look fake, muddy, or cakey. I tend to apply it over a cc cream foundation to get the full effects of the sun-kissed glow but I am not sure how it would blend with a mineral foundation, if that foundation is powder form. The product itself does have a mattifying effect so it seems to seal in moisture for me and makes it so I don't need a finishing powder. Try applying a little patch over your foundation and see how nicely it blends in or if the mineral formula you use doesn't combine well with this product. I'd hate for you not to reap the benefits of all lovely color this gives you if you were to apply it underneath a foundation with coverage.
"All over", but not truly all over. Put this in all of those contour areas where the sun hits. I put it under my cheek bones and blend it upward, on the brow bone, up at the top of my forehead, chin, jaw line, decollete (sp?). I ADORE this product, it blends incredibly well. No other product I've tried can look so dark when I put it on my skin and then blend out to a perfectly sun-kissed look. It makes my face look thinner!