Do you want to have a healthier skin or healthier hair or a healthier you?? Why not all? If so water is a must in your daily routine. 

Add shine
For years, hairdressers have been saying a cool-water rinse leaves hair glossier. Is it true? Yes! The chilly temp constricts the cuticle layer of your hair so it lies flatter; making strands smoother and more reflective.

Cleanse and condition
Too much seawater can dry out your locks, but oceans are good for something—their nutrient-rich waters support marine botanicals (like sea kelp) that can cleanse, repair, and detangle strands. 

Tame tresses
Soft shower water leaves hair more manageable because there are few mineral salts (pesky molecules that can make strands rough and prone to tangles). 
If you have hard water, install a water-softening shower filter. It can stop your color from fading, too.

Prevent damage
You probably know from firsthand experience that chlorinated or salty water can turn healthy hair into a frizzy mess. 
But the fix is easier than you think. "Just rinse your hair in the shower or under a hose before swimming," says Laini Reeves, owner and creative director of Essensuals London, a salon in Los Angeles. "The strands will absorb their fill of clean water, so they won't be able to soak up as much of the damaging water." After your dip, coat hair with conditioner for extra protection from the sun.

Brighten eyes
A cold compress helps reduce under-eye inflammation, but you can get a similar effect with H2O. "As water evaporates from skin, the surface becomes cooler," cosmetic chemist Ni'Kita Wilson explains, so a splash of water can de-puff temporarily.

Firm your skin
For centuries, people in eastern Europe have gone to bathhouses for water therapy to detoxify and tighten their skin. The process—which involves a steam-room session to open pores, followed by a cold-pool plunge to shock skin—is easy to replicate at home, according to Eva Scrivo, a New York City-based beauty expert and host of Beauty Talk on Sirius Satellite Radio. 

Just soak a washcloth in steaming-hot (but bearable) water, then lay it over your face for a minute. Next, wash with your favorite cleanser, and rinse with warm water. For your "plunge," splash with cold water about 15 times. "It may sound old-fashioned, but it really works to invigorate and tighten your skin," Scrivo says.

Add radiance
Hydrating from the inside makes skin more luminous, nutritionist Keri Glassman says, author of The O2 Diet. To see results, drink eight glasses a day. It sounds like a lot but many women need that much to see a difference in their skin, she notes.

Tone muscles
Water is about 12 times more resistant than air, so it takes more effort to move while submerged, according to Terry-Ann Gibson, PhD, associate professor of kinesiology at Boise State University. That means exercises you do in a pool are extra-effective muscle sculptors. 

An easy one to try: Stand in water up to your neck, then move your arms and legs as if you're cross-country skiing for 1 minute.

De-dimple legs
Losing weight improves the look of cellulite, but hydrating from the inside out is the number-one natural way to plump skin so underlying fat cells are less noticeable. You can hydrate and slim down, by eating water-rich fruits and veggies. 

One study in Japan showed women who got their H20 this way had smaller waists and lower BMls than those who sipped their fluids. Some of the water-richest foods are now in season! 

Reduce anxiety
Zen Buddhist monks have incorporated water features in their meditative gardens for hundreds of years because of their soothing sounds. And studies show listening to nature—particularly running water and waves—helps reduce anxiety. Feeling stressed? Place a tabletop fountain at your desk or download the sounds of the surf at Nature Music Download.

Improve your sleep
Soaking in a hot bath before bed can help you transition into a deeper, more restful sleep, a study at Loughborough University found.