Im not sure why but when I color my hair it wont stay on the gray for more than 2 weeks or less.But it stays on the hair thats not gray.I used nice and easy gray solution dark brown  permanent .And also the color after was to dark darker then on the box.my hair is dark brown naturally but i cant seem to find a hair color thats the same as mine.Im a guy with long hair about half way down my back.If i go to a hair salon will they use a hair color that will stay on the grays?I was told there hair color is stronger?I seem to get gray right near my face from about my lower ear to my forhead.but all the rest of my hair is dark brown.I just colored it 2 weeks ago how long should i wait to go to a salon so they can fix it for me?also is there somthing that removes permanent hair color and whats it called?Any info will help.thanks!!!!

thanks for the tip biker i will try that.I use to have it done at a place a few years ago but havent been there in a while.