Animal Hospital: Every DNA Combination and Serum Recipe in the Lab

The Laboratory on the second floor of Animal Hospital lets you turn patient DNA into serums using three-letter codes built from four ingredients. Pink serums are thrown at patients, visitors, and NPCs to change them, while green serums are drunk by you to change your own character. Getting the right code matters because only some combinations produce a usable vial.

Quick answer: The four ingredients are A = Pink Jelly, C = Ginger, G = Milk, T = Purple Mushroom. Enter a valid three-letter code at the mixing table, wait for the 30-second timer, then use the Vial Press to get your serum.

The four DNA ingredients and their letters

Every recipe is a three-letter code, and each letter maps to a specific shelf item in the Lab. Keep this mapping in mind before you start mixing.

DNA letter	Ingredient
A	Pink Jelly
C	Ginger
G	Milk
T	Purple Mushroom

How to make a serum in the Lab

The Laboratory and the entire second floor unlock after your first ambulance visit during a shift. In skip-tutorial mode, the second floor is available from the start. Once it is open, the DNA Sampler tool and all four ingredients become usable.

Pick up the DNA Sampler and use it on a patient lying in a bed. Healthy patients give a pink sample, and anomaly patients give a green sample. The sample color affects which combinations will work, so note which type of patient you sampled.

Carry the sample to the Sequencer in the second-floor Lab and insert it. Complete the sampling minigame by clicking inside the green DNA gauge to load the sample into the dish.

Bring the dish to a mixing table and feed the growing culture with three ingredients in the exact order of your chosen code. If the combination is unstable, it fails and you have to start again.

A working combination starts a 30-second timer. When it ends, take the dish to the Vial Press, which finishes the sample automatically and produces a Glass Vial.

Use the serum. Throw pink serums at patients, visitors, and NPCs to apply an effect to them, or drink green serums to apply an effect to yourself.

You know a mix worked when the timer starts and the Vial Press hands you a colored vial. If no timer appears, the combination is unstable and nothing is produced.

Pink serum recipes (thrown at patients and NPCs)

Pink serums come from healthy patient samples and are aimed at other characters. Each code below is confirmed to produce an effect.

Code	Effect
TTT	Patient turns into a Mimic and starts attacking
AAA	Shrinks the patient
CCC	Patient produces slime rapidly
GGG	Turns the patient into a fish
TAG	Makes the patient invisible
GAT	Sets the patient on fire
AGA	Changes the patient’s eyes; looking at them drains your Sanity
TTC	Makes the patient slower
GAC	Patient constantly changes fur color
CAG	Makes the patient slightly faster
TCT	Starts a fire
ATT	Starts a fire
ACA	Gives the patient or NPC hair
CTT	Makes the patient very fast
GCG	Patient starts to glow

Green serum recipes (drunk by you)

Green serums come from anomaly patient samples and affect your own character when you drink them.

Code	Effect
CGT	Player starts dancing
ATA	Player shrinks
ACG	Shows the message “You drank a strange serum”
GTG	Player turns into a ghost
CAC	Player transforms into a clown
TGC	Gives the player -5 detection radius

Unstable combinations that produce nothing

These codes have been tested and fail. They do not start the timer and do not create a vial, so you lose the sample and have to start over.

Code	Result
ATA	Unstable
ATG	Unstable
CAC	Unstable
CTC	Unstable
GAG	Unstable
GTG	Unstable
TAT	Unstable
TCT	Unstable
TGT	Unstable

Note: A few codes, including CAC, GTG, and TCT, show up on both the working and unstable lists as testing continues. Treat them as unconfirmed and let the in-game result decide, since the sample color you used can change whether a code succeeds.

Strongest serums to prioritize

TTT is the most dramatic pink serum because it turns a patient into a Mimic that actively attacks, which causes real chaos during a shift. For green serums, GTG (ghost) and CAC (clown) give the most complete transformations, while TGC is practical because the -5 detection radius makes it easier to move around without triggering certain reactions.

There are 64 possible three-letter permutations using A, C, G, and T, and only part of them are confirmed so far. If a code you enter does not start the 30-second timer, it is unstable, and swapping the sample color from a different patient is often what makes a borderline code succeed.