I am naturally about a level 7, dark ash blonde with about 20-30% gray. I tend to process too red or too gold. Just like everyone else who is gray I was annoyed to read the inside the box instructions that say you have to mix in the neutral color formula if you want to cover gray. After some thought, I decided to ignore this part of the instruction as I am so tired of turning out as almost a red head even with some other "ash" formulas. I added some red/gold correcter drops from sally's. Unfortunately it is a tad to light reddish tone for me. No gray that I can see. For those of you thinking that Herbatint's 7 might be too dark, it is actually not darker than a true level 7. Level 7 is like light brown and barely blonde category for most people.