"Excellent on everything from boils to blackheads..."
-- Fred Weasley (HBP6)
Will clear up any facial blemish (HBP6). Sold by Weasley’s Wizard Wheezes in Diagon Alley.
It's possible that this pimple remover is merely a repackaged form of Essence of Murtlap, which the Weasley brothers learned about from Hermione via Lee Jordan (OP26). They used it previously to cure the boils that were a side-effect of the experimental Fever Fudge in their Skiving Snackboxes (OP18).