Need some advice how to get even color..
I've been coloring my hair with One 'N Only Argan Oil Hair Color 3RV Dark Red Violet Brown with a 20 Vol. Developer for about 2 years. I have gray roots. When I color my hair, my roots are much brighter then the rest of my hair, which looks like a very dark brown/red. I would love to have it all be one color, the darker color. Should I lower my developer to 10 vol.? Also, some of my grays just don't want to take in any color at all, like at my temples and some stray others. I usually color my roots for about 30 min, then put color on the rest of my hair for about 10 min. I've been reading about a Protein Filler, would that help? Do I need to keep it on longer? I need to color my hair tonight because we have a couple parties we are attending this weekend. I plan to stop by Sally's to pick up whatever I need.