Hydragenum

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Hydragenum, indicated in silver, is a basic alchemical substance. It is present in many ingredients, including herbs, minerals and monster parts. This category contains all ingredients with hydragenum as their primary substance.
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Hydragenum, now indicated in blue, is a basic alchemical substance. It is found in seven ingredients.
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Unlike previous games, Hydragenum is not simply part of other alchemical ingredients. It is needed to craft the following items:
* Gray armor dye 
* Superior insectoid oil
* Superior necrophage oil
In the base game it must be crafted, but 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
cs:Hydragenum
de:Hydragenum
el:Hydragenum
es:Azogue
fr:Hydragenum
it:Hydragenum
lt:Hydragenumas
hu:Hydragenum
pl:Hydragenum
ru:Гидраген
Category:Hydragenum
Category:The Witcher alchemy
Category:The Witcher 3 ingredients