The benefits of flotation therapy, or of using a sensory deprivation tank, include pain relief, relaxation and improved skin health. The benefit of pain relief comes from the fact that you are in zero gravity, your body isn’t experiencing any pressure points, which reduces pain. The high salt content of the water is beneficial to your hair, skin and nails, and aids in muscle relaxation and soreness reduction. The environment in a flotation tank is a relaxing, meditative experience.