Standard Foundation Brush
Traditional foundation brushes are great for targeted application. If you only need foundation down the center of your face, or like to build coverage in specific areas, a traditional brush is perfect for you. The only problem is that it is often streaky so try to test the brush before you buy it to ensure a blended finish.
Duo-fiber brushes, also known as stippling brushes, are great for precise application. They offer more even, airbrushed coverage than a traditional brush and also allow for you to work the product into the skin. The downside to stippling brushes is that they often take more time to apply the product. If you’re willing to take the time, you can get a very polished finish.
Buffing brushes can be kabuki style or just any densely packed fluffy brush. Used dry, they give a full coverage airbrush finish with very quick and easy application. Used damp, they can sheer out full coverage foundation for lighter application in warmer months. Buffing brushes allow for control without the time commitment.
Probably the easiest method of application, sponges are a relatively foolproof way to get even coverage. The biggest problem is that they often absorb too much product, but if you dampen the sponge before application you can limit excess absorbtion.
If you’re just starting out wearing foundation, your fingers can be a great tool to start with. This technique allows you to see how the product works into your skin but isn’t best for women with very oily skin.