Zyn pouches are a type of oral nicotine pouch that are placed between the lip and gum. They do not contain tobacco, but they do contain nicotine, flavorings, sweeteners, and plant-based fibers. Zyn is one of several brands of oral nicotine pouches, including On! and Velo. These products have gained popularity in recent years, particularly among youth, due to their wide array of flavors. Zyn pouches are marketed as "tobacco-free," which can imply a lower risk, but the long-term health impact of nicotine pouches is still unknown. Nicotine concentrations differ across oral nicotine pouch brands, and Zyn is sold in 3 and 6 mg in the United States. There are no federal regulations that prevent or restrict the sale of oral nicotine pouches, and the marketing restrictions on these products are not as strict as those on combustible tobacco products. However, the FDA does not approve these products as tobacco cessation interventions or nicotine replacement medications.