Zyn pouches contain nicotine, plant-based fillers, pH adjusters, sweeteners, flavorings, and a small amount of water, all wrapped in a biodegradable fiber pouch. There’s no tobacco leaf, no smoke, and no vapor. Each ingredient serves a specific purpose: delivering nicotine through your gums, controlling the release rate, and making the experience palatable.
The Complete Ingredient List
Every Zyn pouch contains the same core ingredients regardless of flavor. The active ingredient is nicotine bitartrate dihydrate, a pharmaceutical-grade nicotine salt derived from plants. The rest of the ingredients are food-grade additives that control texture, moisture, taste, and shelf stability:
- Nicotine bitartrate dihydrate: the nicotine itself, in salt form
- Microcrystalline cellulose: a plant-based filler that gives the pouch its body
- Hydroxypropyl cellulose: a binding agent that controls moisture
- Sodium carbonate and sodium bicarbonate: pH adjusters that help nicotine absorb through your gums
- Acesulfame potassium and sucralose: zero-calorie artificial sweeteners
- Flavorings: listed generically, with no specific agents disclosed
- Gum arabic: a natural stabilizer for texture
- Maltodextrin: a carbohydrate-based filler that adds volume
- Potassium sorbate: a common food preservative
- Water: controls moisture and nicotine release
The pouch itself is made from plant-based fibers that are biodegradable. It does not contain fiberglass, plastic, or any tobacco leaf material.
How the Nicotine Works
The nicotine in Zyn is a salt called nicotine bitartrate dihydrate, which meets pharmaceutical purity standards. This is a cleaner form than the nicotine found naturally in tobacco leaves, which comes bundled with plant impurities and other compounds. Zyn comes in two nicotine strengths: 3 milligrams and 6 milligrams per pouch.
On its own, nicotine salt doesn’t absorb through your gums very efficiently. That’s where the sodium carbonate and sodium bicarbonate come in. These alkaline compounds raise the pH inside the pouch, which converts more of the nicotine into its “freebase” form. Freebase nicotine carries no electrical charge, so it crosses the membranes in your mouth more rapidly and enters your bloodstream faster. Manufacturers use this chemistry intentionally. Higher pH means quicker, stronger nicotine delivery. Lower pH means a gentler, slower release that newer users find more tolerable.
What the Fillers and Sweeteners Do
Most of what’s inside a Zyn pouch isn’t nicotine. The bulk comes from microcrystalline cellulose, a refined plant fiber used widely in food and pharmaceutical products as a filler. It gives the pouch structure so it holds its shape between your lip and gum. Maltodextrin, a starch derivative, adds additional volume. Hydroxypropyl cellulose binds the mixture together and regulates how quickly moisture moves through the pouch, which in turn controls how fast the nicotine releases.
For taste, Zyn uses two artificial sweeteners: acesulfame potassium and sucralose. Both are zero-calorie and commonly found in diet drinks and sugar-free foods. The brand does not disclose what specific flavoring compounds it uses, listing them only as “natural and artificial flavorings.” The FDA has authorized 10 Zyn flavors, including Cool Mint, Spearmint, Wintergreen, Cinnamon, Citrus, Coffee, Menthol, Peppermint, Chill, and Smooth.
Zyn Is Classified as a Drier Pouch
Nicotine pouches on the market fall into two categories based on moisture content. Zyn falls into the “drier” category alongside brands like Velo, Rogue, and On!. Other products like LYFT and White Fox run noticeably wetter. The moisture level matters because it affects how quickly the pouch activates and how long it lasts. Drier pouches tend to release nicotine more slowly, producing a longer, more gradual experience. The small amount of water in the formula keeps the pouch functional without making it soggy.
Effects on Your Gums
Because the pouch sits directly against your gum tissue, the ingredients do make contact with sensitive oral membranes. Nicotine pouch users commonly develop small lesions or irritation at the placement site. A five-week observational study of 23 Swedish dentists who regularly used snus or nicotine pouches found that the prevalence of oral lesions was 95.7% at baseline. When participants switched to a pouch designed with a plant-based inner barrier to reduce direct tissue contact, moderate-to-severe lesions completely disappeared and gum inflammation cases were eliminated.
This suggests that the ingredients themselves, particularly the alkaline pH adjusters and nicotine, are the primary drivers of oral irritation. Rotating the placement spot in your mouth and choosing lower-strength pouches can reduce the severity of these effects, though some degree of tissue response is common among regular users.
FDA Authorization
In a notable regulatory milestone, the FDA authorized 20 Zyn products for marketing after what the agency described as an “extensive scientific review” through the premarket tobacco product application pathway. The authorized products cover all 10 flavors in both the 3 mg and 6 mg strengths. This authorization means the FDA determined these specific products meet the legal standard of being “appropriate for the protection of public health,” though the agency can revoke authorization if evidence emerges of significant youth uptake. The authorization applies only to these 20 specific products and does not extend to other nicotine pouches or any other Zyn variants.