I have a client that has well water - VERY high iron deposit on her hair. For 2 years we searched on what to use to keep her highlights blonde. (She would leave my salon blonde, but by the time she came back for retouch her blonde was bright ORANGE)! We have had VERY good success with the Malibu Makeover. She also likes to use the Blondes Weekly Brightener and and Hard Water Weekly Demineralizer at home. Now when she comes in for her retouch she is still BLONDE!!! Thank you Malibu Wellness!