Thank you very much for the in depth answer; most informitive

I can't see why inventing a neutral to chroline could be that difficult... ,
my goal was not so much to protect my colouring, but rather to slow down the degradation rate as excellerated by the the chrlorine & bromine...,
but I'm not a chemist... so what do I know?

( I come up with great ideas, but my follow-through sucks! )