"While the exact amount you should drink each day varies, no one disputes the role good hydration plays in keeping skin looking healthy and even young. When that hydration comes from pure, clean water -- not liquids such as soda or even soup -- experts say skin cells rejoice. 'It is my belief that our skin needs at least a 1/2 gallon of good, clean water -- that's about eight glasses -- every day,' says Lipski.
While any good, clean water will keep your body and your skin hydrated, Lipski says hard water, the kind high in minerals, is especially good. Using water softeners to de-mineralize drinking water may reduce some of the potentially helpful effects. 'A water softener may help your plumbing, but it's hard water that is better for your health,' she says.
In addition to keeping cells hydrated, water helps cells move nutrients in and toxins out, which Lipski says automatically leaves skin looking better. She adds that when we're properly hydrated, we also sweat more efficiently. Doing so helps keep skin clean and clear as well." *