Q: Is liquid or powder foundation best for oily skin?
A: Powder foundation is an ideal choice for anyone with oily skin, as powder formulas are great at absorbing excess oil. And if you tend to sweat easily or you expect to be wearing foundation in the heat, powder foundation should be your first choice. Unlike liquid foundation, which tends to melt in the heat, powder can easily stay put in high temperatures.
Powder foundation is a dry formula that’s made up of pigments and minerals. This foundation comes as either a pressed or loose powder. Either way, you’ll apply it to the face using a large powder brush.
Powder foundation is also a great choice if your swear by natural beauty products. There are mineral powder foundations out there that are ground using 
% pure natural mineral stone and therefore would not expire like liquid foundations do
% pure natural mineral stone and therefore would not expire like liquid foundations do