LOVE POTION[]
A Love Potion causes an obsession from the consumer. It was first used by Merope Gaunt because she wanted to marry Tom Riddle Sr. But when it wore off, Tom left Merope and her son, Tom Marvolo Riddle, for dead. According to Hector Dagworth-Granger, no one has managed to create an eternal bounding for life, called Love.
The most powerful Love Potion is Amortenia. It is considered a highly dangerous potion. However, it must be given to the consumer every day for the same effect. Or it would be Merope and Tom again.
The potion smells strongly of what ever the comsumer likes most. As for Harry Potter, it smells of Treacle tart, a broomstick, and Ginny Weasly.