Q: I was wondering if it is safe to use a home straightening kit on my lightened hair. I use the Nice & Easy hair colors. Most
kits say not to use on bleached or highlighted hair, does this mean that these kits are not suitable for my hair?
A: Generally speaking these warnings are for those women (and men) who lighten their hair significantly. Bleaching/lightening the hair
makes the hair more porous and more susceptible to damage, as well as easier to process by other chemical processes. The answer to your
question depends largely on what kind of process you use with your hair color.
Do you use the hair color to lighten your natural color
significantly or do you add a color of the same level or darker? If you use the hair color to lighten your hair more than three levels,
you may want to avoid those products that warn against use on bleached or highlighted hair.
That being said there are straightening kits on the market (such as Ogilvie Home Straightening
Kit, or EasyStraight Hair Straightening System) that are formulated using ammonium thioglycolate. These straighteners are essentially
the same formulas as are used in permanent wave kits, and can be used the same as a perm can be used - even on highlighted or bleached hair.
Just be sure that your bleached/highlighted hair is in sufficiently good condition to withstand the chemical process. Follow
the package directions for performing a strand test before using any chemical product on your hair.