A lash lift-and-tint treatment involves two separate processes, both designed to give you beautiful, fluttery eyelashes for weeks. The lash lift mimics the effect of an eyelash curler. It makes your lashes bend upwards, leaving them looking longer, and your eyes more open and bright. Meanwhile, a lash tint is similar to a brow tint – or applying several coats of mascara. It makes your eyelashes look darker, thicker, and fuller.