Polyjuice Potions are a crucial piece of magic in the Harry Potter universe, and countless characters have used them over the years.

The Polyjuice Potions are used quite a few times over the course of the Harry Potter book and film franchises, despite the fact that the morality behind the magic is quite murky. The potion’s ability to transform users into other people has been put to use by a significant number of the series’ most memorable characters.
It is one of the most potent and useful pieces of magic in the Wizarding World because it enables the user to take on the physical form of any other person, provided that the user can obtain a strand of their DNA. Because of this, the spell is considered to be one of the most powerful pieces of magic.
The fact that Harry and his friends have been able to make use of the potion on a number of occasions to acquire access and knowledge that they had not been able to before is an indication of how beneficial this item has been to Harry and his friends over the years.
Polyjuice Potion is one of the Harry Potter spells that audiences learn to recognize, despite the fact that there are many other spells in the Harry Potter universe that are never addressed. Hermione discovers the recipe for it buried deep within a potion book in the first installment of the Harry Potter series, Harry Potter and the Chamber of Secrets.
The group of friends quickly realizes how useful this potion can be, despite the fact that it is an advanced one that requires a high level of skill to perfect, as well as an entire month of time spent brewing it. However, they are not the only wizards who are aware of the potion’s existence.
Several of their adversaries make use of it for much more sinister purposes. The following is a rundown of every instance in which the polyjuice potion is utilized in the Harry Potter film series.
The Quest to Find the Heir to the Slytherin House

In “Harry Potter and the Chamber of Secrets,” we see Draco Malfoy lazing around on a couch.
After establishing that Tom Riddle is the rightful heir to the Slytherin house, Harry Potter is seen in the conclusion of Harry Potter and the Chamber of Secrets making his way further and further into the chamber.
However, in order for the gang to unearth this long-lost mystery, a great deal of digging is required. They initially have the suspicion that Draco Malfoy is the rightful heir, and with Hermione’s help, they are able to use the polyjuice potion to question him while they are acting as Draco’s closest friends, Crabbe and Goyle. Thanks to Hermione’s help, they are able to uncover the truth about who the rightful heir is.
Hermione immediately demonstrates that the complicated potion is not as reliable as it might seem by turning herself into a cat through the use of stray hair. This shows that the potion is not as reliable as it might seem.
Despite this, Harry and Ron are successful in their attempts to concoct a poly juice potion, which enables them to successfully transform into the forms of the crab and golem so that they can complete their mission.
Due to the fact that Harry Potter and Draco Malfoy have a long-standing rivalry, it is impossible for Harry to have gained access to this information without first donning a convincing disguise.
The scene demonstrates how helpful the Polyjuice Potion can be, and it also introduces the tool as something that may be equally useful in the future. It is truly a lifesaver in this scenario, as it enables the Golden Trio to cast aside their concerns regarding Draco and continue their search for the true heir to the Slytherin throne.
The secret killer behind the scenes

After being introduced in Harry Potter and the Chamber of Secrets, the idea of polyjuice potion doesn’t come up again until the shocking conclusion of Harry Potter and the Goblet of Fire, when it is revealed that Professor Moody has actually been a Death Eater in disguise the whole time. Prior to that, the idea of polyjuice potions doesn’t come up again until Harry Potter and the Half-Blood Prince.
Even though Voldemort is one of the most dangerous wizards in the Harry Potter series, he is currently in a state where he is far too weak to make any moves on his own. Therefore, he gives his most devoted follower, Barty Crouch Jr., the mission of carrying out a covert operation at Hogwarts.
Crouch takes on the appearance of Alastor Moody through the use of the Polyjuice Potion, all the while holding his victim captive in order to keep a steady supply of the ingredient for the potion.
This use of Polyjuice Potion demonstrates that it is not always put to good use; even the evilest wizards are able to take advantage of powerful magic and bend it to their will, as demonstrated by this use of the potion.
Harry Potter finally emerges from his sheltered childhood and comes face to face with the dangerous forces that wish for his death in “The Goblet of Fire.” This is the moment when Harry Potter discovers just how dark the world can be.
The franchise experiences a change in tone thanks to the terrifying performance of actor Ralph Fiennes as Lord Voldemort, and the idea that his followers could be hidden among Dumbledore’s closest ranks at Hogwarts is a truly terrifying one that becomes a reality in this story thanks to Polyjuice Potion.
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The Conflict of the Seven Potters

When the evil forces led by Lord Voldemort seize control of the Wizarding World, Harry Potter quickly becomes one of the most wanted individuals in the entire nation. It is impossible for Harry to go anywhere without being recognized and possibly captured because the Ministry of Magic and Hogwarts appears to be in the Dark Lord’s pocket. This makes it impossible for Harry to avoid being captured.
In the book Harry Potter and the Deathly Hallows, the followers of Dumbledore put themselves in danger (again) by using Polyjuice Potion to transport Harry from Privet Drive to Grimmauld Place just before Harry turns 17 years old. This was done so that they could avoid the problem that had been presented. In order to throw off the pursuit of the Death Eaters, who were hot on their trail, the group decides to all assume the identity of Harry.
The Battle of the Seven Potters is a major turning point in Harry’s journey because it demonstrates how far his friends are willing to go in order to protect him from harm. This is a significant achievement for Harry.
They use the polyjuice potion as a means of actively drawing the fire of the Death Eaters, which ultimately leads to Alastor Moody’s demise. Harry learns the value of selflessness through this act of selflessness, which will later serve as an important lesson for him to put into practice when Voldemort takes over Hogwarts in the series grand finale.
The fact that Harry had to make so many concessions in order to get to that point makes the eventual defeat of Voldemort all the more satisfying, and the Battle of the Seven Potters is the perfect example of that.
The Locating and Recovering of Slytherin’s Locket: Polyjuice Potions Scene

The Golden Trio uses Polyjuice Potion once more in Harry Potter and the Deathly Hallows to retrieve Slytherin’s Locket from Dolores Umbridge in the Ministry of Magic, following a strategy very similar to the one they used many years earlier to find the Heir of Slytherin. This time, however, they are attempting to steal it from Umbridge.
After they discovered that the locket was a dangerous Horcrux that contained a piece of Voldemort’s soul, the three of them pretended to be three high-ranking officials so that they could enter the Ministry of Magic undetected.
Even though their plan isn’t quite as detailed as they had thought it would be, they are still able to overcome the majority of the challenges and retrieve the locket. They then bring it back to the forest where they are staying and permanently destroy it there.
Prior to this point, Regulus Black was the only person who knew the secret behind Voldemort’s Horcrux. But the Golden Trio is successful in reclaiming all of Voldemort’s dark artifacts and destroying them thanks to their use of Polyjuice Potion, which paves the way for them to ultimately triumph over the Dark Lord during the Battle of Hogwarts.