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The oral mucosa is the mucous membrane lining inside the mouth, which includes the cheeks and lips.

It should not be confused with saliva, which is the primary secretion of the oral mucosa.

When someone consumes nicotine through a nicotine pouch or snus placed in the mouth, the nicotine and flavors are absorbed through the oral mucosa.


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PMI's oral smokeless products | Smoke-free products

Oral smokeless products include nicotine pouches and snus.

Our Science

The facts about nicotine

3 min read

Nicotine is addictive and not risk-free but is not the primary cause of smoking-related disease.

Our Science

All about: Snus, snuff, and nicotine pouches

5 min read

Snus, snuff, and nicotine pouches are all placed in the mouth to release nicotine and flavors. Find out more about them here.