Elegant black makeup brush by Lisa Eldridge. Perfect for flawless application. makeup brush no. 1. No.1 Seamless Blend Brush is my new foundation brush. The No.1 brush was designed with flat pointed bristles to create a flawless coverage with its synthetic hairs. This brush is the perfect companion to your Lisa Eldridge Foundation, as it easily blends the liquid foundation onto your skin to create an even and seamless coverage.