Benzene
Benzene is a crafted chemical in Subnautica 2, refined from Blood Oil at the Fabricator. It is the precursor to Aerogel, Medical Kits, and several advanced synthetic materials that gate mid- and late-game crafting chains.
Quick Info
How to Craft & Source Materials
Benzene is crafted at the Fabricator from 3 Blood Oil. Blood Oil is harvested from the Blood Oil plant, a deep-red pod found in clusters across the Kelp Forest and Grassy Plateaus. The plants themselves are non-hostile, so harvesting is safe — just watch for predators that share the biomes.
Blood Oil (x3)
Harvested from Blood Oil plants. The plant is non-hostile, so collection is straightforward.
Safe to harvestKelp Forest
50–150m — Blood Oil plants grow in clusters between the kelp stalks.
Primary sourceGrassy Plateaus
100–200m — scattered Blood Oil plants across the red plains.
Watch for sandsharksUses & Recipes
Benzene is the gateway to advanced synthetic chemistry. Aerogel unlocks reinforced deep-pressure suits and base modules, Medical Kits are your only source of mid-expedition healing, and synthetic fibers feed into hazard protection for late-game biomes.
Aerogel
Ultra-light insulating material used in reinforced suits and base modules.
Medical Kit
Heals damage — your only mid-expedition recovery option.
Synthetic Fibers
Advanced fiber used in reinforced suits and hazard protection gear.
Crafting Calculator
Plan your total Benzene needs across all recipes.
Tips & Strategies
Keep Medical Kits Stocked
Medical Kits are the only way to heal mid-dive, and they cost Benzene. Always carry 2–3 on deep expeditions and bank a reserve of 5–10 Benzene at base so you can restock between runs.
Harvest Blood Oil in Batches
Blood Oil plants cluster in tight groups in the Kelp Forest. A single sweep through a cluster usually yields 6–10 Blood Oil — enough for 2–3 Benzene in one trip.
Pre-Bank for Aerogel
Aerogel is a major Benzene sink and gates reinforced suits for deep biomes. Pre-bank 4–6 Benzene before you unlock the Aerogel recipe so you can craft the suit set immediately on blueprint discovery.
Pin Blood Oil Clusters
Blood Oil plants respawn over time, so pin dense clusters with beacons on your map. Repeat farm runs to the same Kelp Forest locations are the most efficient way to keep Benzene stocked.
Related Resources
Source Material Locations
Benzene is crafted, but its source material — Blood Oil — is harvested from plants in the Kelp Forest and Grassy Plateaus. Pin Blood Oil farming routes on the interactive map to keep your Benzene supply chain flowing.
View on Interactive Map →Frequently Asked Questions
How do I craft Benzene?
Benzene is crafted at the Fabricator from 3 Blood Oil. No other materials are required, and the recipe unlocks once you scan your first Blood Oil plant or pick up the resource.
Where do I find Blood Oil?
Blood Oil is harvested from Blood Oil plants found in the Kelp Forest and Grassy Plateaus biomes. The plants grow in tight clusters, so a single sweep through a cluster usually yields enough for several Benzene.
What is Benzene used for?
Benzene is used to craft Aerogel, Medical Kits, Synthetic Fibers, and several advanced synthetic materials. Aerogel is the biggest sink because it gates reinforced suits and base modules for deep exploration.
Is Blood Oil renewable?
Yes, Blood Oil plants respawn over time, so you can revisit pinned Kelp Forest clusters after a few in-game days for repeat harvests. There is no hard cap on total Benzene production in a playthrough.
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