Are you wondering about how to heal your character in Subnautica 2? The world of Proteus is full of mysteries and wonders, but danger also lurks in every corner. If you decide to play on Creative Mode, then don’t fret, since your character is pretty much invulnerable. Conversely, if you’re playing on Survival Mode, then this guide is for you.
Subnautica 2 survival guide: Healing
At the start, your character has 100 health/HP. This gets depleted if you experience mishaps, such as:
- Going hungry (starving) or thirsty (dehydration). Each time your food or water meter ticks, you lose -4 HP.
- Taking damage from enemies and the environment–i.e. extreme heat. The damage you suffer varies.
- Leviathans are also considered hostile creatures, but they’ll gobble up your character whole, leading to instant death.
- Running out of oxygen causes your screen to darken. If you’re unable to replenish it in time, your character will perish, too.
Healing up via Medical Gel Sacs
To heal your character in Subnautica 2, you can consume items known as Medical Gel Sacs. These come from underwater plants known as Acidic Raions:
- Use your Survival Multitool to cut the sides of the plant, which should yield Acidic Raion Pouches.
- Grab the Medical Gel Sac, which is the glowing green stem in the middle. When used, it restores +10 health.
Healing up via First Aid Kits
Subnautica 2’s healing mechanic also involves the use of First Aid Kits. You’re going to spot several of these inside crates, whether they’re left near wreckage or found inside abandoned bases. Likewise, you can craft First Aid Kits once you have the necessary materials. Simply check the Fabricator’s Consumables tab to make these items:
- Basic First Aid Kit – Requires 1x Fiber; restores +50 health.
- Enhanced First Aid Kit – Requires 1x Fiber and 1x Medical Gel Sac; restores +100 health.
Additionally, the Processor machine allows you to craft using alternative recipes:
- First Aid (From Medical Gel) – Requires 1x Medical Gel Sac; restores +50 health.
That does it for our guide on how to heal your character in Subnautica 2. These tips should help you stay in decent condition as you roam around Proteus. If you need help with other survival-related matters, you can read our oxygen guide and food/water guide.
Subnautica 2 is currently in early access, which means new biomes, systems, and story beats are expected to be added as part of updates. For everything you need to know about the game, you can visit our Subnautica 2 guides hub.

