The brush you use with your base makes such a difference to how your foundation looks and lasts. For years I never really appreciated a good foundation brush and applied my foundation with – *gasp*– my fingers.
My first foray in the foundation brush world was my trusty Bobbi Brown flat foundation brush which I’ve had for almost 10 years. Though I have to say a flat brush wouldn’t be my go to brush for foundation. It’s good for placing product where you want to blend it but not the best for blending itself. If I am blending with a flat brush I hold it at the end and move the tip in light circles across my face to spread the product.