Helium Filaments

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

- In-game description

Helium Filaments is a material that can be found and collected by Guardians while exploring The Moon. Helium Filaments are found in helium canisters and chests, which can be harvested by Guardians. Helium Filaments may also be awarded to Guardians for completing a Daily Heroic Story Mission or a Patrol bounty.

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

In Destiny 2, Helium Filaments are part of the Spider's rotating stock of materials, and can be purchased in batches of 5 for either one Legendary Shard or 5,000 Glimmer.

Uses

 * Used to upgrade weapon perks.
 * Used to upgrade armor perks.
 * Used to purchase reputation with factions.

List of appearances

 * Destiny
 * Destiny 2
 * Shadowkeep