As a professional I like to use many different tools. These two foundation brushs are staples in my kit. They are both made from synthetic material and deliver different results. The one on the left is from Advanced Minerals and cost around $28. I use this brush to deliver a full face of foundation for a more made-up look, although it can be used for a natural look as well.
The MAC foundation brush on the right I use for more of an everyday application. It’s fun to stipple the foundation across ones face with this brush while letting it slightly dry, than going back over the face with a circular motion to finish the look.
I always finish a face with powder, and lately have been setting the foundation application with spray tan. This takes away the powdery look , and finishes the face with a sunkissed glow.