Fairy Spark Dust

Fairy Spark Dust was a magical whitening toothpaste. On the quiz that Gilderoy Lockhart gave to his second-year Defence Against the Dark Arts class on the first day of the 1992-1993 school year, there was a question asking what he used to achieve his "famous dazzling white smile," to which one student answered this product.

Appearances

 * Harry Potter and the Chamber of Secrets (film)