Lash Perfect Black Mascara with Lash Enhancing Serum combines a high-quality mascara with an enhancing peptide, which gives up to a 35% increase in lash density within 6 weeks. This helps to improve the condition of lashes, giving the appearance of increased length and thickness. 89% of those surveyed would recommend Lash Perfect Black Mascara with Lash Enhancing Serum to a friend!