|Regrowing hair spell|
Instantly regrows lost hair.
- "Once, Aunt Petunia, tired of Harry coming back from the barbers looking as though he hadn't been at all, had taken a pair of kitchen scissors and cut his hair so short he was almost bald except for his bangs.... Next morning, however, he had gotten up to find his hair exactly as it had been before."
- —Harry Potter recalls instants of unexplained happenings in his youth.[src]
- Harry Potter and the Philosopher's Stone (Mentioned only)
- Harry Potter and the Deathly Hallows (Possible appearance)