I have dark brown hair with some warm tones and no. 1 black brown fit me perfectly. It's not too cool toned or too warm/red.
The product doesn't come out super pigmented like the benefit precisely my brow pencil, but it's easier to not mess up and it's buildable. The results will show up more natural regardless even if you build it up.
It lasts for a long time if you don't smudge it (you shouldn' t do that with makeup anyway) both on the eyes and the brows, which is how I wear it in this picture and every day now.
The product itself is smooth and easy to work with. I've bought other brow pencils for this price tag, and with those I have had to press down super hard to get out any pigment at all. With this one I don't have to do that.
All in all this is a very smooth and nice product to achieve more natural brows, and I have come to like this instead of the thick and super dark insta/bird brows. Highly recommend!