Koh Gen Do's versatile, flat-head foundation brush features ultra-soft bristles that create a natural veil of coverage and can be used with all types of foundation, including both liquid and powder formulas. The elegant design reaches challenging areas and can be used to create different levels of coverage for a polished, flawless finish. Ultra-soft bristles. Ideal for use with liquid and powder foundations. Koh Gen Do Women's Foundation Brush A great designer gift. Shop Koh Gen Do at Barneys New York.