One example of a Tourmaline crystal
(it comes in many different shapes and colors)

Tourmaline is prized as a beautiful, semi-precious gem. Now, as a mineral, it has become a focus of research at universities and research centers worldwide.

The reason - infrared Tourmaline is the only one mineral to show permanent electricity on the earth and is also a natural (non-manufactured) source of negative ions and far infrared (FIR) rays.

It is also known to be helpful for improving circulation, relieving stress, increasing mental alertness and strengthening the immune system function (Niwa Institute for Immunology, Japan. Int J. Biometeorol 1993 Sep; 37(3) 133-8).

Around 1986, it was found in a research station in Japan that, even though tourmaline was broken down in smaller pieces, a positive and a negative electrode existed on both end of the crystal, and the electrodes never disappeared unless tourmaline was boiled near 1000°C.
In addition, when the positive and the negative electrodes of a tourmaline crystal were connected to each other, it was proven to show low electricity of 0.06mA.

Tourmaline, in your filter, is used to naturally transform water into mild alkaline water, reduce water clustering (what happens to our stored water) and has anti-bacterial and deodorant qualities. Treated water applied to the skin gives an excellent effect of moisturizing and absorption.

In addition, Tourmaline generates FIR that purifies the water, and acts like a 'supercharger', assisting the water alkalizer to ionize and alkalize.

Tourmaline has been researched and found to activate animal & plant metabolism.

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