What's Actually in a Zyn Pouch?

Short answer: A Zyn pouch contains no tobacco leaf. It's a small fleece pouch holding nicotine, a plant-fiber filler, pH adjusters, sweeteners, flavorings, and a few stabilizers. Far fewer ingredients than a cigarette — but "short list" isn't the same as "harmless," and the most important ingredient is still nicotine.

The full ingredient list

Across its products, Zyn's pouches are built from roughly these components:

• Nicotine (as a nicotine salt) — the active ingredient
• Microcrystalline cellulose — plant-based filler that gives the pouch its bulk
• Sodium carbonate / sodium bicarbonate — pH adjusters
• Hydroxypropyl cellulose and gum arabic — stabilizers/binders that hold moisture and texture
• Sweeteners — acesulfame potassium and/or sucralose
• Flavorings — natural and artificial
• Water and salt

That's it. There's no tobacco leaf, no tar, and nothing is burned.

Nicotine — the one that matters

This is the whole point of the product and the ingredient driving everything else. Zyn uses pharmaceutical-grade nicotine (a nicotine salt) rather than nicotine extracted with the tobacco leaf, which is why pouches are marketed as "tobacco-free." Strengths are typically labeled 3 mg or 6 mg per pouch in the U.S.

Two things worth knowing: the number on the can is the nicotine content, not the dose you absorb — and how much actually reaches you varies a lot. A study measuring nicotine delivery from pouches found that only 24–52% of the labeled nicotine was extracted during use, and that the strongest pouches can deliver a peak blood-nicotine level higher than a cigarette. Nicotine itself isn't classified as a carcinogen, but it's hard on your cardiovascular system and is what makes the habit genuinely addictive.

The pH adjusters (why they're really there)

Sodium carbonate and sodium bicarbonate aren't flavor — they're there to make the nicotine hit harder. Nicotine crosses the lining of your mouth far more easily in an alkaline (higher-pH) environment, where it converts to "freebase" nicotine. Raising the pH is exactly how a 3–6 mg pouch can deliver a satisfying dose. It's a deliberate design choice, the same trick used across the category.

Fillers, stabilizers, sweeteners and flavor

Everything else is structure and taste. Microcrystalline cellulose is the inert plant fiber that gives the pouch its body; hydroxypropyl cellulose and gum arabic keep it moist and stable; acesulfame K and sucralose are the same sweeteners used in diet sodas; and the flavorings (mint, citrus, coffee, and so on) are food-style additives.

These ingredients are generally considered safe to eat. The open question is what it means to park them against your gums for hours a day, every day — which is not how food additives were tested.

What we still don't know

This is where honesty matters. Pouches are new, so the long-term effects of chronically dosing your gum line with these flavorings and pH agents simply aren't well studied yet. Some pouches may also contain trace tobacco-specific nitrosamines despite being "tobacco-free," though at far lower levels than dip or cigarettes. When the FDA authorized Zyn in 2025, it found the products expose users to fewer harmful chemicals than cigarettes — but it pointedly did not call them safe.

The bottom line

Zyn's ingredient list is short and mostly mundane — filler, stabilizers, sweeteners, flavor — wrapped around the one ingredient that actually drives the habit: nicotine, engineered with pH adjusters to absorb efficiently. If reading the list is making you reconsider, that's a reasonable instinct. Here's whether pouches are bad for you overall, what they do to your gums, and how to quit nicotine pouches.

This article is general information, not medical advice. Talk to a doctor about your nicotine use.

Sources

• FDA — FDA Authorizes Marketing of 20 ZYN Nicotine Pouch Products
• Scientific Reports — Nicotine delivery and acute effects after use of tobacco-free nicotine pouches
• British Dental Journal — Nicotine pouches: a review for the dental team