The shine off her hair, sorry love thats grease from washing your hair once a week and constantly touching it! There's also no way a water filter will stop your hair getting knotty like who is she trying to fool, and for the record if her husband actually commented on her hair ill be shocked. I got a full head of high lites and my husband didn't have a clue i got it done so I don't for a second think he noticed a difference in her hair