Another VERY important issue to be considered before you do anything to your hair, whether it be in a salon or at home ~~ medications and health issues. I'm not an expert on the subject, but my beautician is, therefore I listen to what she says.

If you have had recent surgery with anesthesia, certain medications that you might be taking, and even certain health conditions, can all effect the way your hair reacts to any chemical treatment, be it coloring, a perm, straightening, etc. This should be brought up with the salon, or asked of someone in the know if you are doing it yourself at home.

If in doubt - check it out - and don't assume that just because you haven't had a problem in the past - that you won't ever have any.

Just sayin'.........