Helium Filaments

"Filaments of helium-3 fusion fuel, gathered from the lunar regolith by a helium coil."

- In-game description

Helium Filaments are an upgrade material found on the Moon, used to upgrade legendary gear. They can be found in helium canisters and chests, as well as acquired by completing a Daily Heroic Story Mission or Patrol bounty on the Moon.

Twenty Helium Filaments may be purchased from Roni 55-30 in the Tower Hangar in exchange for ten Legendary marks.

List of appearances

 * Destiny