Review (4/5): Great non-permanent hair color!
My son wanted to dye his hair blue - ummmm no. Hair chalk was the perfect compromise. It adds as much or as little color as you want. It lasts one day - I would recommend washing it out each night or you will wake up with it all over your pillow.
Super easy to apply - you can add in different shades of the same color to add dimension, do all the same color, or add as many colors are you like. I love that this gives my kids the freedom to make their hair original but isn't permanent and doesn't have smell like the hair spray colors do.