I tried so many sunscreens but they either dry me out or leave a white cast. This Dior one runs like an essence and it does not leave a white cast. I apply it before my moisturizer because I felt more comfortable with that combination than after moisturizer like your normally do with sunscreen. Sunscreen companies should definitely learn from Dior because it is the BEST of the BESTEST sunscreens I ever used. It is really expensive for such little bottle so I use it very efficiently... Hehehe