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.

Herbs with nigredo

Template:Aethermap	Allspice root
Template:Vermilionmap	Bryonia
Template:Rebismap	Celandine
Template:Vitriolmap	Crow's eye
Template:Aethermap	Ginatia petals
Template:Rebismap	Han fibers
Template:Vitriolmap	Hop umbels
Template:Quebrithmap	Mandrake root
Template:Hydragenummap	Mistletoe

Minerals with nigredo

Template:Quebrithmap	Ducal water
Template:Aethermap	Quicksilver solution

Monster parts with nigredo

Template:Quebrithmap	Alghoul marrow
Template:Rebismap	Cemetaur jaw
Template:Hydragenummap	Cockatrice eye
Template:Aethermap	Drowned dead tongue
Template:Quebrithmap	Garkain saliva
Template:Vitriolmap	Ginatz's acid
Template:Vitriolmap	Ghoul blood
Template:Rebismap	Stones of Ys
Template:Vermilionmap	Venom glands