If the constant clumping & smudging of mascara is a daily nightmare, perhaps its time for a change Dylash eyelash & brow dye is the perfect answer for those who find mascara a trial but cannot go without. Darkening your lashes will immediately give your eyes a whole different dimension. Shiny, healthy looking lashes for up to 6 weeks. Also use on brows for a more defined brow line especially for toning in with your hair colour.