Where can I get the Petri's Philter recipe?

Where can I get the Petri's Philter recipe? - People Getting Paintbrushes from the Can

I have found the enhanced petri's philter, but I can't find the basic recipe. I would assume it's from a merchant, but I've checked most.

the-witcher-3

Pictures about "Where can I get the Petri's Philter recipe?"

Where can I get the Petri's Philter recipe? - Orange and White Dr Pepper Can on Black Wooden Table

Where can I get the Petri's Philter recipe? - A Man Standing with a Can of Paint

Where can I get the Petri's Philter recipe? - Book On A White Wooden Table

Petri Dish Filling Machine SOLO 911

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