Meh... hmm.
I got these for my 5 yo granddaughter for Christmas. She was so excited!  Then she tried to use them and on her brunette hair they didn't even make a mark.  They just gunked up her hair without adding any color to it.  She had better luck "painting" my silver locks and her grandpa's beard, but it took a lot of effort to make the colors show up.  The waxy stuff got on our clothes too.  Easy enough to wash out, just annoying.
Rating: 2 stars