Skele-Gro

Skele-Gro, a potent magical potion renowned for its ability to regrow bones overnight, is introduced in Harry Potter and the Chamber of Secrets as a painful but effective remedy for skeletal injuries. Administered to Harry Potter after his arm bones are vanished by a faulty spell from Professor Lockhart, the potion exemplifies the gritty realism of wizarding medicine, causing intense discomfort as it steams and burns its way through the body. Though it appears only once in the series, Skele-Gro underscores the high stakes and bodily toll of magical mishaps, with no further evolution or mentions in later books.