Reagants are used in Alchemy to create potions and thrown weapons, enchant equipments or refill lanterns. They can be purchased from various shops or found randomly throughout the game. The character can also manually generate them using the skill Foraging, the higher the skill points, the more valuable the generated reagents.
NOTE: The below ingredients are available in Books II and III. Book I's available ingredients differ. A complete list of Book I ingredients, which are divided into "reactants" and "reagents," may be found in the excellent and more comprehensive GameBanshee guide at