Healthstones are on their own cooldown, allowing one to be used simultaneously with a healing potion.
Only one Healthstone may be carried at a time. Creating a new Healthstone while carrying one will instead reset its charges.
Healthstones, like most conjured items, disappear after being logged out for longer than 15 min.
As Healthstones are conjured items, they may be traded to players on other realms.
Healthstones are sometimes referred to as Green Candy, Lock Candy, or Cookies.
Patch 8.0.1 (2018-07-17): No longer shares a cooldown with healing potions.
Patch 7.3.0 (2017-08-29): Healthstone now heals 25% of the user's health at all levels, rather than a level-based flat amount.
Patch 6.0.2 (2014-10-14): Cooldown reduced to 1 minute, down from 2 minutes. Healthstone's cooldown will no longer reset during combat, and its cooldown is now shared with healing potions. Health restored is now a flat amount based on level (was 20% of maximum health), and can no longer be a critical effect.
Patch 5.0.4 (2012-08-28): Icon updated. Healthstones restore 20% of the user's maximum health, instead of 45% of the creator's base health. Will now have 3 charges. [Soulburn] no longer has any effect on this item.
Each charge will still trigger the 2-minute cooldown between uses.
Patch 4.0.1 (2010-10-12): Revamped. Warlocks may now only conjure a single "rank" of Healthstones. Healthstones now heal for 45% of the creator's base health, rather than a flat amount based on the Healthstone's rank.