works well overall but hard to color stubborn grey [SEP] this does work well to dye your eyebrows and lasts a couple of weeks it s annoying though to get the powder out of the caplets when you cut the top the powder flies out everywhere so hold it as close as you can to the mixing cup wish there was a better way to package it it does dye your skin so apply vaseline around the perimeter of your eyebrows it does not easily come off your skin also leave it on a little longer than the directions say i put big clumps of it on my stubborn grey to try to get it to take