I recently had a sample of the SOS universal primer which worked so well under my historical foundation EL Double Wear. But having recently been converted to Clarins I wanted to try a new foundation. I did the research on the Primer's, choosing the Lavendar to brighten my skin. When I put it on under my new Clarins Skin Illusion 106 foundation I looked like a ghost. I used very little product but the results were quite stark. I also noticed that my skin became dry and the foundation was cakey and splotchy on my face.
To make sure it was the primer and not the foundation, I skipped the primer and voila' beautiful, luminous skin, sans the primer. My pre make-up routine includes Micellar Water, Toner, Blue Orchid facial oil, and Double Serum. I have also started putting a small drop of Double Serum into the foundation-EXTRA DEWEY SKIN!!!