Designed to give 3D volume and a beautiful 'billion lash' effect, the ST London 3D Billion Mascara is the ultimate lash transformation. This mascara provides dramatic, buildable volume and a gorgeous fanned-out finish, making it perfect for sparse and spaced-out lashes. Your lashes will remain bold and defined throughout the day because of its water-resistant, smudge-proof, and flake-proof composition.