Snus is available in small, pre-portioned sachets known as "portions." These sachets are crafted from porous paper or plant-based materials, and they contain either moist ground tobacco or nicotine-infused fibers. Users place a portion under their upper or lower lip, where it sits comfortably against the gums or inner cheek.
Component Release
When snus comes into contact with saliva, it begins to dissolve slightly. This process releases key components:
- Nicotine: The primary active ingredient that enters the bloodstream
- Flavors: Such as mint, fruit, or tobacco, which create taste sensations
- Additives: Including salt, which helps stabilize the mixture
Absorption Mechanism
Nicotine from snus is absorbed through the oral mucosa—the thin lining of the mouth. This direct absorption bypasses the lungs, avoiding the harmful byproducts of combustion. Once in the bloodstream, nicotine travels to the brain, where it binds to specific receptors, triggering the release of neurotransmitters like dopamine and norepinephrine.
Usage Duration & Characteristics
A single snus portion generally lasts between 20 and 60 minutes, with factors like moisture level, nicotine strength, and individual saliva production affecting this timeframe. It is typically replaced every 20 to 30 minutes.
- Smokeless and does not require lighting
- Available in various strengths and flavors
- Can be used in many smoke-free areas (check local laws)
- Contains addictive nicotine, so caution is advised