Part of the Go Brush series, GO B8 is a chemical-free recyclable cosmetic brush that features a bottle able to contain formula as part of the handle. The squeezable handle dispenses the product that can then be picked by my the brush head, ready for application. The brush is ideal for liquid formulas such as foundation, highlighter, concealer or bronzer. Consumers can create their own makeup brush by mixing and matching various brush head options with handle colors.