Rimmel Lash Accelerator Mascara is Rimmel's first mascara & lash treatment in one. It works both instantly & overtime. The advanced ultra-lengthening formula instantly makes lashes appear up to 80% longer. Over time, the unique Grow-Lash Complex strengthens, nourishes & renews lashes to promote natural lash growth for up to 117% longer looking lashes after 30 days. Discover the secret to beautifully long, natural lashes!