SAN DIEGO -- If you're like many Americans, you either filter your drinking water or buy the bottled variety. Now, a growing number of people are using purified water to bathe in or brush their teeth, 10News reported.

Dana Harrison and Joseph Perry told 10News that a water filter in their bathroom is improving the condition of their skin and body.

"My skin's improved. It's not as dry," Harrison said.

Perry said he immediately felt the benefits.

"My skin felt softer. My hair became softer," Perry said.

Both said simple, purified water is doing the trick.

"Unless you want to cart in five tons of bottled water a year, there's absolutely no reason to do anything but get a good quality filter," Perry said.

Perry uses one in his shower and Harrison uses one on her bathroom sink.

Elaine D'Farley, the beauty editor at Self Magazine, said more and more Americans are becoming filter fanatics.

"I think there's a big trend in purity and I think nowadays if something can be filtered, it will be filtered," D'Farley said.

Phil Tan, a representative from Gingi Filters, said water purifiers do help improve the skin.

"It tends to cleanse better because the finer the water is, the better it is for cleansing," said Tan.

10News contacted the Massachusetts Institute of Technology to see if it's scientifically possible to do what the companies claim and in general they said it's possible.

Dermatologist Ranella Hirsch said when it comes to your skin, you don't need a filter to get rid of impurities in your water.

"It is such a small number that the skin is able to deal with it and it simply doesn't cause the skin any harm," Hirsch said.

But, the companies insist removing impurities is key to healthy skin and these filter fans couldn't agree more.

"It was noticeably different," Harrison said.

"The proof is in the performance. Once you experience it, once you feel it, you know immediately that it works," Perry said.

Harrison uses a $70 filter from a company called Gingi. Perry's showerhead is by Pi Water and costs $135.

Like in many kitchen sink filters, the filters mentioned do work with hot water.