During a visit with one of my clients today she mentioned that she rinses her hair in purified water. I asked her what for? She said that her hairdresser (Who cuts hair for celebrities) had recommended rinsing her hair after she has washed it with purified reverse osmosis water. Her hairdresser said that it would reduce her split ends and the dryness in her hair. Even though she washes her Hair in softened water there is still residue from the sodium. This client said that she fills a large bowl or a bucket with reverse osmosis that is installed in her home and rinses after she has it washed. She said that this process has made a huge difference in relaxing her hair and reducing the frayed split ends.