My water is so hard that when my bathtub is dry, there is a thin, dusty, chalk-like coating over it.
Here are some things that may better answer your question:
http://en.wikipedia.org/wiki/Hard_wa...stance_to_soap.
http://www.newton.dep.anl.gov/askasc...1/gen01539.htm
http://styles101.homestead.com/hwater.html
http://ezinearticles.com/?Hard-Water-Hair&id=773520
Despite the "scary" level of hard water as illustrated by those articles, my hair isn't significantly worse for wear or ruined by my hard water. But I also henna my hair and I use conventional shampoos and conditioners, which may affect that.
Bookmarks