Review (5/5): It worked well
I bought these to use in our school carnival's "Crazy Hair" room. They worked very well! We used all the colors, but the brown, white, gray and black were the least popular. The hair chalk showed up on lighter hair better than on darker hair and they don't work on dry hair, but these are limitations common to all hair chalk. Hair chalk will only work if you thoroughly saturate the hair with water or detangler spray. It washed out with one shampoo when I applied it on my 12 year-old's hair, but it took my 8 year-old two washes to get it out of her hair. I think that's a reflection of their age and not the product itself. You will have chalk on your hands after you finish, but it washes right off with soap and water. I highly recommend watching a few instructional videos online before you use hair chalk. This was a good product.