A manicure is a beauty treatment for the fingernails and hand that can be practiced at home or at a spa. Manicure entails filing and shaping of the nails and massage of the hands. But there are various spa treatments you can choose from for a good manicure. Benefits of manicure: The massaging of the hands helps improve blood circulation. A manicure with lotions promotes nail growth, flexibility and retains moisture in the nail. So, it is important to get a good manicure and make sure that it is protected from harsh chemicals, which can make the nail brittle.