awesome if you do a lot of outdoor sweaty activities [SEP] i have been using this product for about five years so very worth iti naturally have zero pigment in my eyebrows i apply the dye once every weeks and leave it on for hours since dye does not take to my hair very easily for more accurate results and less skin dying i use an old mascara brush that i have cleaned off with rubbing alcohol no vaseline needed my eyebrows are also tattooed which i cannot recommend highly enoughthey say no eyelashes but i do mine very carefully with the mascara wand again leaving on for about hours between the dyed brows and lashes i do not usually wear makeupwhen you mix the tint with the developer put the developer in the mixing cup first if you do it the other way around the air blown out by the developer bottle will blow some of your dye out and it will dye your bathroom sink in an instantincluded a pic forgive the grim face it was taken just following the election