My purchase was motivated by perpetually dry hair and skin. This had not been an issue before we moved to a new house, built just four years ago--one block down the street from a 70 year old house. So, same water supply. My theory is that Dallas' chloramine was being exhausted by the corrosion in the older house's pipes, but, not in this newbie.

So did this help? Mt hair, yes, it seems to have. I haven't suffered from any days where my hair was just inexplicably dry.  For my skin, less so. But I figure this is because the towels I dry off with and the sheets I sleep on are washed in chloramine water. So, after I shower, if I don't towel dry my hair, that seems to help it retain moisture. The ultimate test would be to put one of these on the water lines to my washer, but' i'm frankly not quite that obsessive(or affluent).

My first vitamin c cartridge lasted about 7 weeks of daily 10 minute showers. So that will become a new bi-monthly $10 expense to refill this. It was easy to install, and easy to swap the cartridge.