Subnautica 2 Guide: How to Heal with Medical Gel Sacs and First Aid Kits
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Beginner's Guide

Subnautica 2 Guide: How to Heal with Medical Gel Sacs and First Aid Kits

Alexandre Alexandre Jollier
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In brief

Subnautica 2 requires constant health management in the face of environmental and biological threats. This guide explains how to use medical gel sacs and healing kits to restore your health points and survive the dangers of the deep.

In Subnautica 2, survival is a constant challenge. This guide will give you details on the different ways to heal in the game.

Health in Subnautica 2

At the start of your adventure, your avatar has 100 health points (HP). However, various factors can cause this health to drop. If your character doesn't eat or drink, they will lose 4 HP each time one of their bars (water or food) drops. Elements such as extreme temperatures, or even attacks from enraged creatures, can lower the character's health.

If your character runs out of oxygen and goes beyond the breath gauge, the screen darkens, and if you don't breathe in time, your character will drown.

How to recover health

Medical gel sacs

Using medical gel sacs is one of the most convenient ways to restore your health. These are elements taken from an underwater plant, the Acid Raions. With the survival multi-tool, you need to cut the side of the plant to harvest Acid Raion Pods. At the center of the plant is the glowing green stem, the medical gel sac; consuming it restores 10 HP.

First aid kits

First aid kits are also important for preserving your health. They can be found in abandoned crates, but you can also craft your own. Here are the available types:

  • Basic first aid kit: requires 1x Fiber and restores 50 HP.
  • Advanced first aid kit: requires 1x Fiber and 1x medical gel sac, restores 100 HP.

Crafting your first aid kits

Head to the Fabricator, and go to the consumables tab. You can also use an alternative recipe using the processing machine:

First aid (from medical gel): requires 1x medical gel sac and restores 50 HP.

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Frequently asked questions

Where can you find medical gel sacs in Subnautica 2?
Medical gel sacs are found at the center of underwater plants called acidic Raions. Use your survival multi-tool to cut the plant and harvest the glowing medical gel sac at its core.
What is the best healing kit to craft?
The Enhanced First Aid Kit is the most efficient, restoring 100 HP for 1 Fiber and 1 medical gel sac. It's an excellent investment for emergency situations.
How much HP do I lose if I haven't eaten or drunk?
You lose 4 HP each time your food or water bar drops by one notch. It's therefore important to keep these vital resources constantly topped up.
Can I craft healing kits without the Fabricator?
Yes, you can use the processing machine to create First Aid from a single medical gel sac, which restores 50 HP. It's a quick alternative when the Fabricator isn't accessible.

Key takeaways

  • Medical gel sacs extracted from acidic Raions restore 10 HP and are easy to harvest with the survival multi-tool.
  • The Enhanced First Aid Kit is the most efficient option, restoring 100 HP for just 1 Fiber and 1 medical gel sac.
  • You can craft your healing kits at the Fabricator or use the processing machine for quick alternatives.
  • Your health drops by 4 HP for each food or water deficit, on top of damage caused by extreme temperatures and creatures.

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