It involves more flexibility, so you are not given a set bottle of hair color with a set bottle of peroxide ( that come in those damn Kits).
|The Most Accurate Level Chart Level 1 thru 10 ... I have online|
KC = NATURAL LEVEL COLOR: I am a Level 8/RG
which means my virgin hair is a LEVEL 8 and my tonal categories are: Gold/Red (or Light Copper). Knowing that piece of info helps me be able to figure out more accurately what to use to color my hair with success.
Using and knowing this chart really well, is what you need to learn in order for you to become a good CRIB COLORIST.