O.TWO.O 3D Lengthening Black Mascara - Long-Lasting Lash Extension Beauty Makeup Achieve bold, beautiful lashes with this 3D lengthening mascara. Its long-lasting, smudge-proof formula keeps lashes defined and voluminous all day, perfect for adding depth and drama to your eyes. The unique brush design ensures precise application, lifting and separating each lash for a false lash effect without clumping.