Desire Deluxe Hair Chalk for Girls Makeup Kit of 10 Temporary Colour Pens Gifts, Great Toy for Kids Age 5 6 7 8 9 10 11 12 13 Years Old, “Blue,Green,Grey,Pink,Purple Non-toxic and Water Soluble. This hair chalk-based colouring is made from non-allergenic and non-toxic ingredients. It can also be used as face painting. To remove it, just wash with ordinary shampoo and water.