Id recommend using demi-permanent hair color. Although its not as safe to use as semi-permanent, it is much better than using permanent since it does not contain any ammonia.
The only catch is that you cant go lighter, only darker with demi-permanent hair color. I recommend wella demi permanent hair color!!
cat...im a kitty cat...and i dance dance dance
Tresemme naturals, GFTN
Lustrasilk + honey
KCKT, GVP CB
Ouidad CC, TIGI Catwalk, KCCC, PaulMitchell Sculpting Foam