Item #: SCP-3720
Object Class: Safe
Special Containment Procedures: SCP-3720 is to be kept in a hazardous substance cabinet locked by a passcode available only to level 2 research personnel and higher. The item is to be kept in a cool, dry area and not in direct sunlight.
SCP-3720 is currently stored at Area-42B in the Standard Artifact Research Department (Sector-2) of the Nonbiological Items Minora Research & Containment Unit (42B-N).
Description: SCP-3720 is a biohazardous green liquid in a clear plastic-bottle labelled as generic mouthwash. The bottle itself is labelled as containing 18floz (532.32ml), though only approximately 278ml remain in the bottle. Upon initial containment, only 328ml remained, suggesting usage or consumption of SCP-3720. The bottle containing SCP-3720 has shown no anomalous properties.
When a subject uses at least 20ml of SCP-3720 for at least 1min as if it were standard mouthwash, a 12—24 hour period of strong dental hygiene promotion, termed post-use promotion, occurs immediately afterwards. During post-use promotion, subjects will become remedied of most forms of mild-to-moderate dental-health issues. Cavities are healed, tooth decay is reversed, and oral irritations (such as canker sores and blisters) are cleared. Further inspection of subjects’ mouths show whitening, strengthening, and general cleanliness of the teeth to be much stronger than that of standard mouthwashes. The enamel of the subject’s teeth will also be much stronger than it was before the subject used SCP-3720.
When a subject ingests at least 20ml of SCP-3720, it will take approximately 5—10mins for SCP-3720 to be digested into the subject’s body. If the subject used SCP-3720 for at least 1min, post-use promotion will occur as usual, but if not, no anomalous properties will occur for the following 5—10mins while awaiting digestion.
When a subject has successfully digested at least 20ml of SCP-3720, the subject will contract a disorder termed gastrointestinal-dysplasia ossificans progressiva identified as 3720-A. This disorder displays close similarities of fibrodysplasia ossificans progressiva (FOP), except that 3720-A only affects the gastrointestinal system of the subject’s body, and no other organ-systems will be directly affected by it.
When a subject becomes afflicted with 3720-A, the disorder will act in a quicker manner than FOP. Most subjects will die within 48hrs of having ingested SCP-3720. Only one subject has survived for longer than 48hrs but died shortly after (at approximately 55hrs) from suffocation caused by their own solidified esophagus.
| Time since ingestion | Symptoms |
|---|---|
| T+2hrs | Soreness of throat, dizziness, fatigue |
| T+8hrs | Stiffness and pain in the neck, headache, shallow breathing |
| T+11hrs | Mild-to-moderate pain in abdomen, chest, and throat; difficulty swallowing |
| T+24hrs | Severe-to-unbearable pain in abdomen, chest, and throat; inability to swallow solid foods |
| T+29hrs | Laboured breathing from pressure against trachea, inability to swallow anything, entirety of mouth and esophagus solidified |
| T+36hrs | Failure of the cardiovascular, digestive, excretory, renal, and respiratory systems; entirety of stomach solidified |
| T+42hrs | Most of small- and large-intestines solidified |
| T+48hrs | Continuing shut-down of various systems, death |
Discovery: SCP-3720 first came to Foundation attention when Antonio █████, a layman chemist, was detained in ███████, Chile for unlicensed peddling of the item. The purported properties of the item attracted the attention of an embedded agent in the area, who was then successful in obtaining the item from local law-enforcement officials. The chemist was quickly [REDACTED] later released.
Addendum-OsM-01: In an experiment headed by 42B-N Research Director, Dr. ██, and aided by onsite gastroenterologist Dr. Edward, it was noted that 3720-A can manifest in two different forms.






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