Nigredo

== ==
Nigredo is an additional, or secondary substance, which is present in some alchemical ingredients in addition to the primary substance. All alchemical ingredients contain one of six basic substances: aether, hydragenum, quebrith, rebis, vermilion, and vitriol. There are also three additional substances: albedo, nigredo, and rubedo. Any given ingredient may contain only a single basic substance and potentially one additional, or secondary substance.
Nigredo potions: If all ingredients used to create a given potion contain nigredo as an additional substance, the resulting potion will positively affect Geralt's coordination and focus, increasing his chances of hitting opponents and giving him a + 20% damage advantage for 4 hours.
== ==
Unlike previous games, Nigredo is not simply part of other alchemical ingredients. It is needed to craft the following items:
It is a guaranteed drop from most regular katakans, but that only amounts to two of them (during A Tome Entombed and at Kaer Gelen) in the base game, so for the most part it has to be crafted. In the , it can also be purchased from alchemists:
* Merchant at the Perfumery
* Wine Merchant at Chuchote Cave, after completing his quest
* Wine Merchant at Dun Tynne Hillside, after completing his quest
=== Notes ===
* It is possible to loot all 5 doses necessary for bombs and superior relict oil, but one has to wait all the way to The Night of Long Fangs, when a few more katakans will spawn around Beauclair. However, as that is one of the last main quests in the entire game, this isn't a viable strategy for a standard single playthrough.
== Trivia ==
*In alchemy, the nigredo means "putrefaction" or "decomposition" of the matter, and is the first step Magnum opus process.
cs:Nigredo
de:Nebensubstanzen#Nigredo
el:Μελάνωσις
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ru:нигредо
Category:The Witcher alchemy
Category:Nigredo
Category:The Witcher 3 ingredients