Love Potion

Ingredients: Ashwinder eggs. Causes the drinker to fall in love. During his Valentine's Day event, Lockhart suggested that the students ask Professor Snape to knock up a quick Love Potion for them. Professor Snape did not approve. Weasleys' Wizard Wheezes sell their own range of Love Potions, which - as Ron can testify to - really do work.