What is the Dark Brown Substance You Rinse Out When Using Listerine?

When using Listerine and rinsing your mouth, you may notice a dark brown, thread-like substance. This observation often leads to questions and speculations about what exactly this substance is. In this article, we will explore the possible causes of this phenomenon and discuss whether it might be a cause for concern.

Composition of the Dark Brown Substance

The dark brown thread-like substance you may notice after rinsing with Listerine is likely a combination of several components:

Dead Cheek Cells: The lining of your mouth, known as the oral mucosa, naturally sloughs off dead cells over time. Food Debris: Residue from the food you have been eating can accumulate in your mouth and mix with mouthwash during rinsing. Mouthwash Components: Listerine contains various compounds such as essential oils (menthol, eucalyptol, thymol, and methyl salicylate) that can help dislodge and remove particles from your mouth, including mucous and saliva-coated debris.

The Appearance of 'Spooge'

A less technical term for this accumulation is 'spooge,' a slang term that refers to the coagulated mucus from around your mouth. This substance is a result of coagulated proteins from food, mucus, and cellular debris that have been partially digested by your saliva and then dried by your breath, especially when you sleep with your mouth open.

Other Possibilities

Some users have speculated that the brown glob could be related to bacteria, such as H. pylori, or other conditions like gastroesophageal reflux disease (GERD).

Another possibility is that the substance is a combination of debris that has been caught on the tongue, which can be likened to a sponge and collects everything you put in your mouth.

Impact of Listerine on Oral Tissue

Listerine has a high alcohol content, which can have an effect on the oral tissue over time. The alcohol can slough away tissue and break down debris, leading to a gel-like substance that may appear brown or the color of the trapped particles. The strong chemicals in Listerine can react with skin cells and debris to form this substance.

When to Seek Dental Advice

While the presence of this substance is generally not a cause for concern, if you are noticing a significant amount of this substance regularly, it might be wise to consult a dentist. They can ensure that the substance is not indicative of an underlying issue that requires medical attention.

Conclusion

The dark brown, thread-like substance you observe when rinsing with Listerine is most likely a combination of dead cheek cells, food debris, and possibly mouthwash residue. While it may be a bit unsettling to see, it is typically nothing to worry about. However, any persistent or unusual changes in your mouth should be discussed with a dental professional.