The alchemist assistant is a side task Hollow Knight: Silksong This can be triggered by talking to alchemical zylotol in worms. After an interview with Hornett Zylotol, he reveals that he is trying to collect some plasmium from a nearby area on behalf of scientific research and envelops the task if players show interest.
After the alchemist's task, he does not give accurate placement to find plasm and leave it to the players to find out. While worms are not the largest of the areas, its winding tunnels make loss of exploring easier. This manual covers all three plasmi locations needed to complete the wishes of Zylotol and their collection.
How to get the Plasmium in Silksong (Alchemist's Assistant Quest)
You want to collect the plasmium, you will first have to equip 
Needle He sits on the bench in his slot instrument (there is one next to the alchemical zylotol). Once you have Needle Equipped, you can extract plasmia nodes in worms.
They are three buds of plasmia scattered after worms you had to collect to complete the wishes of an assistant alchemist Silksong. Here are all their places:
First plasmi location
The first Plasmia Phial is located directly in the niche Under the location of the alchemist Zylotola.
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Using the output to the right of the alchemist, you drop to the level below.
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Turn left and use a wall pitch above the pit to the tip to achieve the above platform.
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Go to the left to break up again and see the blue glow of the plasma node in the niche on the right.
Press and hold the tool to activate the tool using the needle to extraction.
The second plasma location
The second plasmium is located further down into the intestines of the worms.
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From the first plasmia node, turn left and fall down to the platform below.
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Jump left and release a drop down to the level below.
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Fall down the platform on the left and then go to the right to take another hole that leads further down.
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Go to the right to break down again and then turn left to the next drop with the tip at the bottom.
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Fall down to the right and you will find a tunnel covered with moss leading to the second node of the plasmia.
The third plasmi location
The third plasmia node can be found va hidden part of the worms west of the position of the second node.
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From the location of the second plasmia, turn the left and use the wall climb to return as you came.
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On the left of the first falling sand hole is a spike and a wall on which you can use a climb to get to the other side. Do it.
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Skip over the gap on the left and continue on the left until you see another drop.
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Fall down and turn left in the middle of the fall to find a niche with stone wall.
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Break the wall and watch the tunnel left and find the third plasmi node.
Alchemist's Assistant Quest Rewards in Silksong
After collecting all three plasmi bottles, return to the zylotol alchemist to turn to the task. As a reward will give you 
Plasma diapera tool that allows Hornet temporarily Increase its basic health fund by three more masksWhich is very useful in fighting with the boss.
Plasma diaper comes with 3 Active Feeswith 20 others in a reserve. You can use Phial at most to receive 3 temporary masks. When you relax on the bench, Hornet automatically replenishes active fees using those in reservation and consumes in this process. Alchemist Zylotol will complete your fees for Plasmium Phial for a flat fee of 50 RosaryNo matter how many of them are missing.
Hollow Knight: Silksong
- Released
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4 September 2025
- Esrb
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E10+ for all 10+ // fantasy violence, mild blood
- Developers
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Team Cherry
- Publisher (s)
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Team Cherry
- Engine
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Unity
