The Witcher 3 ingredients

Loot the bodies of fallen foes to gather ingredients for making potions, bombs and oils. Legend: = Craftable,  = Dismantlable

Wild plants, herbs and mushrooms can also be used in alchemy. Keep an eye out for them as you travel.

The bodies of particularly dangerous opponents sometimes contain rare mutagens. You can use these to enhance Abilities or prepare special mutagen decoctions.