Protodermis
The engineered substance building the Matoran Universe, protodermis exists in countless refined states from mundane metal to diamond-hard crystal to the destruction-or-transformation force of energized form.

Protodermis is the fundamental material of the entire Matoran UniverseMatoran UniverseA civilization of biomechanical beings living inside a colossal robot, destroyed when Teridax seized control.. It's not a natural element but something engineered by the Great Beings, the architects who created the whole constructed world. The stuff is endlessly versatile (solid, liquid, crystalline, you name it), which is why it powers everything from the armor on a MatoranMatoranThe most abundant species in the Matoran Universe, chosen by Mata Nui to inhabit and maintain his cosmic body.'s back to the buildings they live in to the weapons they fight with. Most people mistake it for some sci-fi alloy, but there's a darker edge to protodermis that the casual lore reader misses: energized protodermis, the raw form at Spherus MagnaSpherus MagnaA desert world of ancient conflict that became the merger point of the Matoran Universe and Bionicle's true endpoint.'s core, is creation and destruction wrapped into one.
The Material That Built a Universe#
Every brick, every weapon, every MatoranMatoranThe most abundant species in the Matoran Universe, chosen by Mata Nui to inhabit and maintain his cosmic body.'s armor is protodermis refined into some functional form. Raw solid protodermis comes mined from the ground by Onu-MatoranOnu-MatoranEarth-wielding Matoran of the deep who adapted to darkness and built the Matoran Universe's defensive cavalry. and shaped by Po-MatoranPo-MatoranThe Stone-element Matoran of Po-Metru and Po-Koro, carvers and quarry workers, the most athletic of the Matoran types and the population behind the Kohlii and Akilini circuits.. Metallic protodermis is what you see in most built structures. So far, pretty mundane.
ProtosteelProtosteelThe Matoran Universe's strongest metal, forged for weapons that could cut through virtually anything, even Makuta armor. is the heavy hitter, reserved for MakutaMakuta (Species)Shadowy Antidermis beings and the Brotherhood's elite, Makuta commanded darkness and shaped the Matoran Universe's fate. armor and Order of Mata NuiThe Order of Mata NuiThe covert organization founded by Helryx to serve the Great Spirit directly, operating in concealment from a fortress on Daxia and waging the open war against the Brotherhood of Makuta that decided the fate of the universe. weapons because it's one of the strongest materials in the known universe. There's also crystalline protodermis, diamond-hard and nearly indestructible, created either through a Toa SealToa SealA cage of Protodermis created by six Toa combining their Elemental Powers, used to trap powerful beings. ritual (when six Toa combine their elemental powers) or by the Shadowed One's staff. In the Destiny WarThe Destiny WarThe open war between the Order of Mata Nui and the Brotherhood of Makuta, told in the 2008 Destiny War podcast, which ended with the Brotherhood's assault on Metru Nui broken and the Great Spirit apparently awake. serial, the Shadowed One uses it as a weapon, creating a band of crystalline protodermis to silence someone who questioned his authority.
The Dangerous Edge: Energized Protodermis#
Here's where protodermis stops being a building material and becomes something to fear. Energized protodermis is the primal form found at the core of Spherus MagnaSpherus MagnaA desert world of ancient conflict that became the merger point of the Matoran Universe and Bionicle's true endpoint.. It doesn't refine or decay. It transforms or destroys.
Anything that touches it either mutates in ways that could kill it or grant it strange new powers, or it disintegrates completely. The outcome depends on what the canon calls "destiny," which is as mysterious as it sounds.
In Destiny WarThe Destiny WarThe open war between the Order of Mata Nui and the Brotherhood of Makuta, told in the 2008 Destiny War podcast, which ended with the Brotherhood's assault on Metru Nui broken and the Great Spirit apparently awake., HelryxHelryx: the first Toa ever createdHelryx was the first Toa ever made, commissioned by the Great Beings on Artakha long before the Toa Mata. She founded and led the Order of Mata Nui. encounters a lake of energized protodermis and discovers an entity made entirely of the substance, something that describes itself as "creation and destruction" incarnate. That entity is casual about the threat it poses. A wave of energized protodermis rolling toward you isn't a puzzle to solve. It's a roll of the dice between transformation and oblivion.
Compiled from primary sources by Lore Fortress editorial. Reviewed by Joe Garratt, Editor-in-Chief.
Sources
- WikiProtodermis, BS01 entry on protodermis forms, composition, and properties across the Matoran Universe
- SerialDestiny War, Greg Farshtey serial depicting crystalline protodermis applications and energized protodermis encounters
- WikiEnergized Protodermis, BS01 entry on energized protodermis origin from Spherus Magna and transformation mechanics
Spotted a factual error or a primary source we missed? Email a correction. Every flagged claim gets reviewed.
Followed from this entry

Protosteel
The Matoran Universe's strongest metal, forged for weapons that could cut through virtually anything, even Makuta armor.

The Order of Mata Nui
The covert organization founded by Helryx to serve the Great Spirit directly, operating in concealment from a fortress on Daxia and waging the open war against the Brotherhood of Makuta that decided the fate of the universe.

Po-Matoran
The Stone-element Matoran of Po-Metru and Po-Koro, carvers and quarry workers, the most athletic of the Matoran types and the population behind the Kohlii and Akilini circuits.

The Destiny War
The open war between the Order of Mata Nui and the Brotherhood of Makuta, told in the 2008 Destiny War podcast, which ended with the Brotherhood's assault on Metru Nui broken and the Great Spirit apparently awake.

Helryx: the first Toa ever created
Helryx was the first Toa ever made, commissioned by the Great Beings on Artakha long before the Toa Mata. She founded and led the Order of Mata Nui.

Makuta (Species)
Shadowy Antidermis beings and the Brotherhood's elite, Makuta commanded darkness and shaped the Matoran Universe's fate.
Mentioned in110 entries
Archives Mole
Small, harmless burrowing Rahi engineered by the Makuta, originally native to Po-Metru and forced into the shadowy recesses of the Onu-Metru Archives, where their cooperative behaviour built living ladders and bridges through the lower levels.
Ash Bear
A powerful bear-like Rahi created by the Makuta, two to three times the size of a Matoran, kept in the Archives of Metru Nui and best known through Graalok, the territorial bear of Le-Wahi.
Azibo
Azibo was an Onu-Matoran prospector of Onu-Koro, the Chief Prospector's most trusted hand and a student of the Principle of Prosperity.
Bahrag
Cahdok and Gahdok were the twin queens of the Bohrok, sealed in a protodermis cage by the Toa Mata and later released to finish their cleansing of Mata Nui.
Bohrok Kaita Ja
A theoretical Bohrok Kaita comprising Lehvak, Kohrak, and Gahlok, capable of fusion in principle but never assembled during the active swarm period.
Bomonga
Bomonga was the Toa Hagah of Earth, mutated by Roodaka into a Rahaga, later restored to Toa form and resettled on Spherus Magna.
Burnak
Burnak were four-legged Rahi native to Voya Nui, engineered by the Brotherhood of Makuta and found across nine elemental and environmental variants.
Cable Crawler
Climbing-type Rahi of Metru Nui's Le-Metru cable network, created by the Makuta and notorious among Matoran for severing power lines and raiding airship cargo holds.
Chute: the Transport Tubes of Metru Nui
A Chute was a pipe of liquid protodermis held together by a magnetic field, used across Metru Nui to carry Matoran, cargo, and Rahi. The system was run by the Le-Matoran, wrecked in the Great Cataclysm and repaired when the city was restored.
Ga-Matoran
The Water-element Matoran of Ga-Metru and Ga-Koro, a female Matoran type, who filled the schools of Metru Nui and crewed the boats of the Mata Nui coast.
Gahdok
One of the twin Bahrag queens, Gahdok commanded the Bohrok swarms alongside Cahdok until the Toa Mata sealed them both in solid protodermis.
Gali, Toa of Water
The Toa Nuva of Water and conscience of the Toa Mata, whose attunement to her element anchored the team across every campaign from Mata Nui to Karda Nui.
+ 98 more
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