Minerals in Tap Water Alters Hair color?

 Do you remember seeing pinkish residue around your shower head in the bathroom?  Do you feel like your hair pulls warm or red gradually?  Well, the "soft tap water" in this area seems to be the culprit.  I had another hairstylist swear that this Malibu Color Wellness shampoo prevents those pinkish water minerals from collecting in your hair.

My water line shows some pinkish discoloration.  So there is probably some truth to countering the color changes in the hair especially if you have blonde or other lighter color hair.