I saw people on the Discord saying the reagent was made as annoying as possible to assemble the final product so out of the blue I decided to make a vintage solve of the puzzle. I also decided to not use the Glyph of Calcification or the Glyph of Duplication, because any alchemist worth their Salt ought to be able to construct this product without using such newfangled glyphs. I don't really care enough to improve it beyond this, this was just a fun exercise. Feel free to discuss the location of Critelli.