Presumably energizes the drinker
- "...and was pleased to find that when left alone, he was able to concoct an Invigoration Draught quite easily."
- —Harry's opinion[src]
The Invigoration Draught was a potion which presumably boosts the drinker's energy. Fifth year students of Potions class were required to brew an Invigoration Draught, which was supposedly rather easy when left alone
Professor Severus Snape, however, had been angered the previous day and smashed Harry's vial of potion, thereby making it impossible to mark the potion. When Harry made to get a new flask, it was only to find that Hermione Granger had made his potion disappear, having believed him to be finished with it.