Animal Hospital Second Floor Lab Guide
The verified route to the Upper Floor Lab, with exact station order, ingredient checks, serum timing, and fixes for the most common experiment mistakes.
Does the Second Floor need to be unlocked?
No separate unlock has been verified. The update added the Upper Floor and Lab as hospital content. “How to unlock Second Floor” is a useful search phrase, but the practical task is reaching the Upper Floor in the live map, not buying an upgrade or completing a hidden quest.
Use the Locations guide if you need the general hospital route. Once upstairs, look for the Lab stations described below. If the room is missing, reconnect to a current server and check the update timeline rather than spending currency on a rumoured requirement.
Lab station order
| Station or area | Job | What to remember |
|---|---|---|
| Upper Floor / Second Floor | Route destination | Go here to find the Lab. The update name and community guides use both floor names. |
| Sampler | Collect DNA | Use it on a patient before starting an experiment. |
| Sequencer | Run the experiment | Enter the DNA sequence and matching ingredients in order. |
| Vial Press | Finish the serum | Use it after the sequence timer completes to create the vial. |
Step-by-step: make your first vial
- 1. Enter the Upper Floor. Start a current hospital run and go to the Upper Floor, the Second Floor added in the September 5 update. The Lab is located there.
- 2. Collect a patient sample. At the Lab, use the Sampler on a patient to create the DNA input. Do not begin by guessing ingredients at the Sequencer.
- 3. Prepare the sequence. Take the sample to the Sequencer. Read the DNA letters, map each letter to the ingredient label shown in the live build, and enter the three-letter order exactly.
- 4. Wait for the analysis. Start the experiment and allow the 30-second process to complete. Changing stations early does not turn an unconfirmed combination into a confirmed result.
- 5. Press the finished vial. Use the Vial Press after the sequence completes. Test Pink Serum on a patient or NPC, or use Green Serum as the player, according to the recipe result.
The Sampler creates the input, the Sequencer processes it, and the Vial Press finishes it. A recipe lookup cannot replace the patient sample.
Confirmed ingredients and recipe labels
The patch data confirms these four ingredient names. Public recipe guides often shorten them to colour labels or letters. Because those labels can be presented differently, read the ingredient name in the current Lab before translating a recipe.
| Live update name | Evidence status | Recipe warning |
|---|---|---|
| Milk | Confirmed update ingredient | Check the live label before using a recipe letter. |
| Ginger | Confirmed update ingredient | Check the live label before using a recipe letter. |
| Strange Jelly | Confirmed update ingredient | Some recipe pages call this Pink Jelly. Treat the label in the current build as authoritative. |
| Mushroom | Confirmed update ingredient | Some recipe pages call this Purple Mushroom. Treat the label in the current build as authoritative. |
For the actual three-letter lookup, use Animal Hospital DNA Combinations & Serum Recipes. That page separates Pink and Green results and lists only effects with usable public evidence.
Experiment troubleshooting
| Symptom | Most likely check | Next action |
|---|---|---|
| No DNA input | The Sampler was not used on a patient. | Return to the Sampler and collect the sample before visiting the Sequencer. |
| Wrong result | Letters or ingredient order was changed. | Repeat the exact sequence from the recipe table; order matters. |
| No vial appears | The 30-second process is still running. | Wait for completion, then use the Vial Press. |
| Failed or unsafe vial | The combination is unknown or unsuccessful. | Record it as unconfirmed and use a confirmed recipe next time. Kaboom specifically tracks an unsuccessful vial. |
| Route claim conflicts with this page | A video or post may describe an unverified secret route. | Check the Patch Verification Log and treat the clip as an exploration lead. |
What this guide confirms
The September 5 update entry and the site verification log agree on the Upper Floor, Lab, Sampler flow, Sequencer, four ingredients, and new Journal content. That is enough to support the repeatable crafting route above.
A separate hidden entrance, special Lab class, secret code, or guaranteed creator-video route is not confirmed here. For Clown interactions and the Green Experiment, Purple Experiment, and Kaboom Journal requirements, follow the dedicated Second Floor Secrets guide and verify that the Journal entry saves.
Continue the Second Floor route
DNA Combinations
Look up confirmed serum sequences and effects.
Secrets & Journal
Find Squiggles and complete the Lab achievements.
Locations
Navigate the hospital wings and common routes.
Items & Upgrades
Check the DNA Analysis Upgrade and other equipment.
Update History
Read the verified Second Floor patch entry.
Patch Verification
See which update claims were reproduced.
Second Floor Lab FAQ
How do I unlock the Second Floor in Animal Hospital?
The September 5 Second Floor update added the Upper Floor and Lab to the live hospital. The verified route is to enter the Upper Floor and walk to the Lab; no special class, Robux purchase, or separate secret code is required.
Where is the Animal Hospital Lab?
The Lab is on the Upper Floor, also called the Second Floor in update coverage. It contains the DNA experiment stations and the four new ingredients.
What order do I use the Lab stations?
Use the Sampler first, take the sample to the Sequencer, enter the DNA sequence and ingredients, wait for the process, then use the Vial Press to make the vial.
What are the four Second Floor Lab ingredients?
The update data confirms Milk, Ginger, Strange Jelly, and Mushroom. Recipe coverage may use colour names such as Pink Jelly and Purple Mushroom, so read the live labels before mapping letters.
How long does the Sequencer take?
A valid DNA sequence starts a 30-second process before the Vial Press step. The DNA Analysis Upgrade is a separate patient-check upgrade and should not be treated as a confirmed shortcut for serum crafting.
Why did my experiment fail?
Check that you collected a patient sample, entered the letters in the exact order, used the matching ingredient labels, and waited for the process to finish. Unknown or deliberately unsuccessful combinations can produce a failed vial; use the recipes page for confirmed results.