If you're googling whether nicotine pouches can help you quit smoking, the honest answer is: nobody knows yet. The evidence base is tiny, short-term, and nowhere near strong enough to call pouches a proven quitting tool.

That's the bottom line from the first Cochrane systematic review of oral nicotine pouches as a cessation aid, published in January 2025. Cochrane reviews are the gold standard for synthesizing medical evidence — and this one found just four small studies, covering 284 people who smoked, with the longest running only eight weeks. The authors rated their confidence in the quitting findings as "very low."

Here's what the review actually found, what it didn't, and what that means if you're considering pouches to quit.

What the review found

The Cochrane team, led by Jamie Hartmann-Boyce at the University of Oxford, searched for all studies testing whether oral nicotine pouches (ONPs) — brands like ZYN, Velo, Nordic Spirit — help people quit or cut down on smoking, vaping, or other tobacco use. They found four studies conducted between 2006 and 2023, all focused on people who smoked cigarettes at the start.

On quitting smoking:

• Two small studies compared pouches to no support or instructions to keep smoking as usual. The authors say they are "uncertain" whether pouches helped more people quit — the data were too limited to draw conclusions.
• One small study compared pouches to nicotine e-cigarettes. Low-certainty evidence suggests pouches may be slightly less effective for quitting than e-cigarettes, but the study was small and the result imprecise.
• No studies compared pouches to nicotine replacement therapy (NRT) like patches or gum.

On safety:

• Three studies tracked short-term health harms. None reported serious adverse events in any group.
• One study found lower NNAL levels in pouch users versus people who kept smoking. NNAL is a biomarker of exposure to TSNA, a group of cancer-causing chemicals in tobacco smoke. Lower NNAL means less exposure to those carcinogens.
• Two studies found no difference in NNAL between higher-dose and lower-dose pouches.
• One study found lower carboxyhaemoglobin in pouch users versus continued smoking. Carboxyhaemoglobin is a marker of carbon monoxide exposure from inhaling combustion products — essentially, it measures how much you're breathing in smoke. Lower levels mean less smoke exposure.

What this does NOT prove:

• That pouches are safe. The studies were short (eight weeks max) and tiny. Long-term safety data do not exist.
• That pouches cause people to quit smoking. The quitting evidence is too weak to say.
• That pouches work as well as — or worse than — NRT, varenicline, or other established cessation aids. No head-to-head trials exist.

Why the evidence is so weak

The Cochrane authors used a system called GRADE to rate confidence in their findings. For the quitting outcomes, confidence ranged from "low" to "very low" — the bottom rungs of the ladder.

Why?

• Tiny sample sizes. 284 people across four studies is not enough to detect real differences in quit rates, especially when quit rates are typically low.
• Short follow-up. Eight weeks is nowhere near long enough to know if people stay quit. Standard cessation trials run six months to a year.
• No comparison to proven tools. Without head-to-head trials against NRT or e-cigarettes, we can't say where pouches fit in the toolkit.
• Study design issues. Some studies had methodological limitations that further weakened confidence.

The review was funded by the U.S. National Cancer Institute and FDA Center for Tobacco Products. Three of the four studies were independently funded; one was funded by a tobacco manufacturer.

The authors say more research is "urgently needed," especially trials comparing pouches directly to NRT and e-cigarettes.

What this means for people who use pouches

If you're using pouches to try to quit smoking, or considering it, here's what you can take from this review:

What IS established:

• In small, short-term studies, pouches didn't cause serious health harms.
• Pouches expose you to fewer carcinogens and less carbon monoxide than continued smoking.
• Pouches are not the same as snus — they contain no tobacco leaf.

What is NOT established:

• Whether pouches actually help people quit smoking.
• Whether they work better or worse than patches, gum, lozenges, or prescription meds.
• Whether they're as effective as e-cigarettes (one small study suggests maybe not, but that's not enough to be sure).
• What the long-term health effects are.

What this is not:

• Medical advice. If you're trying to quit smoking, talk to a doctor about proven options.
• A safety clearance. "No serious harms in three small studies" is not the same as "safe."
• A reason to start using nicotine if you don't already. Pouches are not risk-free.

The Cochrane authors note that many studies are underway, and they'll update the review as new evidence comes in. Until then, the science on pouches as a quitting tool is in its infancy — and anyone claiming otherwise is ahead of the data.

---

SOURCES:

• Hartmann-Boyce J, Tattan-Birch H, Brown J, et al. Oral nicotine pouches for cessation or reduction of use of other tobacco or nicotine products. Cochrane Database of Systematic Reviews 2025, Issue 10. CD016220. DOI: 10.1002/14651858.CD016220.pub2. Cochrane Library | PMC full text
• Epocrates clinical summary: Evidence for oral nicotine pouches in tobacco cessation remains weak

---

Compare prices: Browse nicotine pouch options and prices at PouchFinder.