Use an epilator or ladyshave for removing unwanted hair quickly and easily. Most epilators work in a similar way but have different features or accessories. Some models are waterproof so you can use them both in and out of the shower, for a more gentle procedure use in the shower. Is it necessary to use an epilator? If you want to have silky-smooth legs for up to 4 weeks it is a good idea to invest in an epilator.