Participants: 1. Stay at the research site for 8 days. 2. Undergo a training session for how to correctly use the differ clinical trials

A study to assess nicotine uptake to the bloodstream after use of six different oral nicotine products in adult smokers

This study looks at how much nicotine gets into the blood when adult smokers use different nicotine products. It also checks how people feel about these products, their flavour, and how they affect the urge to smoke and mood. Participants will stay at a research site for 8 days.