Can a pool ionizer effect your hair color?

A pool ionizer basically releases copper and/or other metals into the pool to kill bacteria and algae. I have read that if the copper levels get too high, it can stain a pool and change hair color, much like very high concentrations of chlorine and the bleaching effect. I do not have an ionizer but have seen hair color changes when I have poured a lot of copper based algaecide into my pool. So basically I think you just have to keep the ions at the recommended levels.