From Dark and Darker Wiki

Consumable

Name Movement Speed Effect Interaction Time Action Movement Penalty
-10Provides 15 | 19 | 24 | 30 | 37 | 45 | 54 recoverable base healing. 4 s
50% Scaling
Consume
Always: 50%

-10Opens the Frozen Iron Door. This door can only be found in Ice Abyss, in the Charnel House module.
-10Opens the Golden Door. This door can be found in various modules of the Crypts maps, specifically: the Treasure Room, the Armory, and the Wheel.
-10Opens locked doors and chests. Will not work on doors that require special keys.
-10Opens the Goblin Stone Door. This door can only be found in Goblin Caves, in the Goblin Rooms module.
-10Opens the Rusty Iron Door. This door can only be found in Ruins.
-10Opens the Skull Door. This door can only be found on the Inferno map that features Ghost King, in the Demon Gate module.
-10Provides 100% percent max health healing. 15 | 13 | 11 | 9 | 7 | 5 | 3 s
50% Scaling
Consume
Always: 50%

-10Allows the player to disable environmental traps.