There are a lot of myths surrounding the simple act of drinking water. Guzzling glass after glass of water is linked to everything from weight loss to detoxification to clearer, healthier and more moisturized skin.
The only real water-related danger to skin health is dehydration, a state in which you're actively losing more water than you're ingesting. One of the most important components of healthy skin is collagen, which binds to water inside skin cells [source: Brownstein]. Dehydrated skin can lose its rigidity as a result of moisture loss.
But considering that the human body is already 60 percent water, how much of a difference can a few glasses of extra agua really make? Not much, say dermatologists [source: Aubrey]. Once you're sufficiently hydrated, your body just flushes out the excess [source: Brownstein].
The bottom line is this: Drink up if you suffer from dry, sensitive skin, but don't expect your problems to be solved by chugging eight glasses of water a day.
For more information on skin care, take a look at the links on the next page.