The lunar helm is a piece of lunar equipment worn in the headwear slot. 60 Magic and 40 Defence are required to wear the lunar helm. The lunar helm is created during the Lunar Diplomacy quest by using a lunar bar on an anvil while the player has a hammer. A lunar bar is created by using a lunar ore on a furnace, and lunar ores can be mined from stalagmites found in the cave at the northeast end of the Lunar Isle. The lunar helm may also be bought for 15,000 from the Oneiromancer after a player has completed the Lunar Diplomacy quest if the player has lost their helm.
Enchanting the helm will prevent the player from storing the full lunar armour set in their house's magic wardrobe.