Hello Strawberryfine,
I have a shower filter in my home. ( I bought it along with my drinking water filter.) So far, I have noticed my shower is easier to clean and my skin isn't as dry.
My husband and I usually get eczema this time of year and the shower filter, in combination with Keri lotion, stopped us from having any sort of break out.
I've noticed a lot of difference with my hair as well but I have made a lot of changes to my hair care over all.
I hope I have been of some help.