Gentleman's-tooth-pearling-paste

Gentleman's-tooth-pearling-paste was a magical whitening toothpaste. On the quiz that Gilderoy Lockhart gave to his second-year Defence Against the Dark Arts class in 1992, there was a question asking what product Lockhart used to achieve his "famous dazzling white smile," to which one student answered this paste.

Appearances

 * Harry Potter and the Chamber of Secrets (film)