Posted: Fri Aug 03, 2007 10:19 am
there are 2 possible issues with dying your hair:
1. your hair type 'changes' in pregnancy (or can do) meaning that it may not turn out how you are used to having it. Doing a strand test will sort this for you
2. you absorb small amounts of the chemical through your scalp, which has not been proved safe during pregnancy. It's also not been proven damaging, but is a potential risk. having strand highlights in a salon rather than a home dye kit will mean this isn't a problem.
that's about it really - tiny possible risk, no proof from research either way, so it's entirely your choice. Personally I've avoided strong bleach and gone with strand testing as my hair has become a lot more absorbent since becoming pregnant.