- Velvety synthetic fibre make-up brush for flawless and streak-free finish- Eco-friendly brush with biodegradable handles made from coffee grounds and corn starch- Pro-level application with sleek and natural brush mimicking the soft texture of natural hairDr Botanicals presents their velvety synthetic fibre make-up brush. perfect for achieving a flawless and streak-free finish. Made with biodegradable handles from coffee grounds and corn starch. this brush is both eco-friendly and effective. Experience pro-level application with this sleek and natural brush. designed to mimic the soft texture of natural hair.