<P> Felix Felicis , more commonly known as Liquid Luck , grants whoever drinks it unusually good luck . The time span of this luck depends on the amount imbibed . Liquid Luck is one of the hardest potions to make , as noted by Horace Slughorn ; `` It has to be cooked for 6 months on an extremely complicated formula , and if you make a tiniest mistake , the consequences are severe '' . Because of its properties , it is banned in all sporting events , competitions and examinations . In Rowling 's original narrative , the potion looks akin to liquid gold . However , in the movie adaptation it is clear and water - like . Slughorn also noted that excessive consumption results in side effects that include giddiness and overzealousness , among other effects that are related to overconfidence . In Half - Blood Prince , Harry pretends to give some to Ron so that he will do well at Quidditch . Ron 's luck turns for the better , with the confidence working as a placebo . Harry does use most of it later in the same novel in order to extract the true memory about Tom Riddle and Horcruxes from Slughorn ( though it also has the pleasant side effect of causing Dean Thomas and Ginny Weasley to end their relationship ) , and the rest is shared between Ron , Hermione , Neville Longbottom and Ginny the night Death Eaters break into Hogwarts . </P>
<P> Felix Felicis , more commonly known as Liquid Luck , grants whoever drinks it unusually good luck . The time span of this luck depends on the amount imbibed . Liquid Luck is one of the hardest potions to make , as noted by Horace Slughorn ; `` It has to be cooked for 6 months on an extremely complicated formula , and if you make a tiniest mistake , the consequences are severe '' . Because of its properties , it is banned in all sporting events , competitions and examinations . In Rowling 's original narrative , the potion looks akin to liquid gold . However , in the movie adaptation it is clear and water - like . Slughorn also noted that excessive consumption results in side effects that include giddiness and overzealousness , among other effects that are related to overconfidence . In Half - Blood Prince , Harry pretends to give some to Ron so that he will do well at Quidditch . Ron 's luck turns for the better , with the confidence working as a placebo . Harry does use most of it later in the same novel in order to extract the true memory about Tom Riddle and Horcruxes from Slughorn ( though it also has the pleasant side effect of causing Dean Thomas and Ginny Weasley to end their relationship ) , and the rest is shared between Ron , Hermione , Neville Longbottom and Ginny the night Death Eaters break into Hogwarts . </P>
what potion did harry potter take to get slughorn 's memories
what potion did harry potter take to get slughorn 's memories
Felix Felicis
Felix Felicis