Sometimes referred to as a "lip pillow" or "upper decky" because of where they are placed under the upper lip, oral nicotine pouches are small pouches containing nicotine and flavors. They are used similarly to snus — a small pouch of shredded tobacco leaf — but unlike snus, they contain synthetic nicotine instead of tobacco leaf. For this reason, oral nicotine pouches are not classified as smokeless tobacco products, and therefore are not subject to the same restrictions on their manufacturing or marketing. Oral nicotine products still contain nicotine, which is addictive and harmful to developing brains.