To prepare herbal extracts in The Witcher 3, you must first advance along the storyline to a specific task. Now you can gradually figure out the path to this mission, starting with Vronits - the possession of the Blood Baron.
Walkthrough
Long before preparing herbal extracts in The Witcher 3, Geralt begins his journey to alchemical experiments with Caer Morhen. This witch's fortress is located in the very north and is considered a stronghold for the witches of the Wolf School.
After he and Yennifer raised one of Skellige’s inhabitants, Skjal from the dead, Geralt learned that the path to finding Cyri lies through the freak. The most disgusting creature, which was heavily cursed, was in the territory of Vronitsa Castle.
The witcher leaves for Velen, from where he takes away Uma and continues on his way to Caer Morhen Castle. On the way to the north, he was intercepted by the envoys of Emperor Emgyr and demanded to bow to the ruler of Nilfgaard.
Main task
Geralt's journey continues, and after a while he gets to the Wolf School. On the spot he is met by a disgruntled Wesemir, who laments the black-haired sorceress, after which he asks the witcher to go after Eskel, who went hunting for the forktail.
Further, when the forked tail is killed, the main character returns to the castle and catches Ian for an unsuccessful attempt to activate the megascope. It turns out that he does not work because of the interference that Geralt has to identify. For this, the sorceress gives him a potestikvisitor - he helps to identify the cause of the interference. On the lower floor near Vesemir, you can find a box with a two-dimensional, which gave interference.
When the problems are fixed, you need to activate the megascope together with Yennifer, thanks to which they will contact Ida Emean, and she will talk about the essence of the curse and how to deal with it.
After this conversation, the sorceress visits an interesting idea, for which you need to prepare herbal extracts in The Witcher 3.
The Sorceress's Solution
Before you remove the curse from Uma, you need to prepare extracts of herbs in The Witcher 3. However, to come to this decision will not be easy. First you need to fill the phylacteries with the power of the elements.
In the course of the conversation between Wesemir and Geralt, the witcher finds out that there is one way to deprive the curse of power, but for this, Wesemir had to go with Uma to the top of the mountain and conduct a small ritual. So the witches got a free evening.
Here it depends on the player how the main character will lead him - along with the sorceress or with old friends. One way or another, everyone will learn about the option from the sorceress.
Yennifer decided that the curse should be removed gradually, and it is worth starting with a test of herbs. The witchers expressed their dissatisfaction about this, because then the freak will experience incredibly severe pain. So you need to do this to prepare herbal extracts in "The Witcher 3". Passing this mission does not require important decisions, so there will be no consequences.
Witch mutations
Witchers pass the test of herbs as early as adolescence, and only one in ten boys could pass this test. This procedure, which requires the preparation of an extract of herbs in The Witcher 3, opened the human body for further mutations.
This is exactly what Ian wants to do - to open the body of Mind for further changes. After that, she will ask Geralt to prepare herbal extracts in The Witcher 3.
Finishing potion preparation
So, morning came, and the campaign of Wesemir did not give significant results. It's time to take advantage of the sorceress option, for which you will need a guide to herbal extracts in The Witcher 3.
When all preparations are completed, Vesemir and the sorceress will be asked to create the necessary potion, and the ingredients are on the table, which is nearby. You can take absolutely everything. What Geralt does not use in the task, he can leave it in his inventory. Now you need to go to the Alchemy menu and select the "Tasks" item, where the desired potion will be displayed.
Next, you need to go to the test table and wait for the Yennifer team. She will ask the witcher to introduce the extracts one at a time, and the order does not matter. Only one thing is clear - with each submission Mind will experience terrible pain.
After the introduction of all the extracts, the sorceress casts a spell, but it does not work, and Uma ceases to show signs of life. Then, out of hopelessness, Jennifer begins to violently beat the body of the damned, thus trying to bring him to life.
Her efforts are not in vain - after a few moments, Uma is not trying to speak the words in the elven language with her own voice, but Yennifer picks them up, completing the spell. After that, Geralt opens the phylacteries, and the curse on the creature is removed.
As it turned out, this creature was Avallak'h - the mysterious elf who accompanied Swallow in her travels between worlds. He tells everyone that Tsiri is on the island of the Mists and needs help, as it is unsafe there. An elven sorcerer cannot accompany Geralt, and the witcher sets off in search of his protege.
Thus, one mission ends and another begins, which will advance the player further in the story.