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Gum Irritation and Discomfort: Common side effects of Zyn use include gum irritation, sore mouth, and nausea

Switching to a lower strength (36 mg) eliminates nausea for most users almost immediately

Many people start with a strength that reflects how much they used to smoke, then step it down slowly until they reach zero or stop altogether

The chemical components of electronic cigarette cartridges and refill fluids: Review of analytical methods
