A Xeric's aid (+) is a potion that restores the player's Hitpoints and Defence, while draining the player's Strength, Attack, Magic, and Ranged. It can be made with 78 Herblore, giving 26 experience, by using a buchu leaf with a water-filled gourd vial while having endarkened juice in the inventory. Making this potion gives 26.5 herblore experience.
Each dose heals 19 hitpoints.
This potion is the strongest variant of Xeric's aid, and cannot be taken out of the Chambers of Xeric.