Thanks to the poster for mentioning the counter staining issue from the Wetbrush. My 9-yr old daughter fell in love with the pink brush from my box (though she has a black Wetbrush she has used for a couple years). I was getting annoyed that I keep finding pink stains on her bathroom vanity and actually threw away the pink ACT fluoride rinse, thinking she was carelessly spilling it on the counter. After your post, I realize it is the brush (because I see a few more faint pink stains and the ACT is long gone, lol!) Looks like she's getting the original black brush back!! Annoying about the staining, but the Wetbrush really does work to get tangles gently out of her long hair.