Lift and Tint A lash lift is like a perm for your eyelashes. A lash lift simply alters the shape and color of your natural lashes. Eyelashes tend to grow out, rather than up. however, upward-growing lashes will give a more cosmetically pleasing appearance. The treatment involves boosting and lifting each individual lash, before tinting them for thicker, darker, longer looking lashes. Results of a lash lift and tint last about six to eight weeks and there is no damage to your natural lashes.