How long should you keep a nicotine pouch in?

Thirty minutes is the industry norm, and it is what VELO, Pablo and Nordic Spirit all tell you; ZYN says up to one hour. The number matters more than people realise, because across every published study peak blood nicotine arrives at the moment you take the pouch out. How long you keep it in is not a detail of how you use a pouch. It is the dose.

There is no biological clock inside a nicotine pouch that says “done”. There is a release curve, an absorption curve, and a decision you make. This piece sets out what the manufacturers say, what the pharmacokinetic literature actually shows, and how I would pick a number — including the parts nobody has measured.

What each brand tells you

The makers do not agree, and the spread is a factor of two. All of these are their own words from their own sites, read on 12 October 2026:

Brand	Stated use time	Wording
ZYN	Up to 60 minutes	“place one pouch between your upper lip and gum for up to one hour of real nicotine satisfaction”
Nordic Spirit	Up to 30 minutes	“a fresh nicotine experience that lasts up to 30 mins”, with a tingle that “usually lasts around 15 minutes”
VELO	30 minutes	“Låt påsen sitta under läppen i 30 miuter och ta sedan ut den” — let the pouch sit under the lip for 30 minutes and then take it out (the typo is VELO’s)
Lundgrens	30 minutes	“Låt produkten ligga under läppen i 30 minuter och ta sedan ut den”
Pablo	30 minutes	“Pablo nicotine Pouches are typically used for 30 minutes”
LOOP	No guidance	The FAQ has no “how to use” question at all
Skruf	No guidance	No consumer FAQ or instructions on the site

Pablo is worth singling out: it sells some of the highest-strength pouches in Europe, up to 24 mg per pouch, and it still says 30 minutes. ZYN sells 3 mg and 6 mg in the United States and says up to an hour. Strength and recommended time are not related in any consistent way across the category.

The BfR, describing the category rather than any one maker, puts the norm at “a period of up to 30 minutes, and then removed. The pouches should not be swallowed.” Elsewhere in the same document it notes that “Some manufacturers of nicotine pouches and snus recommend significantly shorter application times of 20 to 30 minutes, from which it can be assumed that less nicotine will be absorbed.”

The removal time is the dose

This is the part I had not appreciated until I lined the studies up. The BfR tabulates six human pharmacokinetic studies. Read the “use duration” column against the “tmax” column — the time at which blood nicotine peaks — and the pattern is almost mechanical:

Study	Strength	Use duration	Time to peak	Peak concentration
Lunell et al., 2020	3–8 mg	60 min	59–66 min	7.7–18.5 ng/ml
McEwan et al., 2022	8–10 mg	60 min	60–65 min	11.9–18.4 ng/ml
Rensch et al., 2021	~4 mg	30 min	32–33 min	9.1–11.36 ng/ml
Chapman et al., 2022	5.8–10.1 mg	20 min	20–30 min	5.1–7.9 ng/ml
Azzopardi et al., 2022	4 mg	60 min	60 min	8.3 ng/ml
BfR and LMU, 2022	6–30 mg	20 min	15–30 min	2.7–29.3 ng/ml

Twenty minutes of use peaks at twenty to thirty. Thirty peaks at thirty-two to thirty-three. Sixty peaks at fifty-nine to sixty-six. The peak is set by when you take it out, not by anything intrinsic to the product — and the BfR draws the obvious conclusion itself: the pouches “can be used for longer than 20 minutes… This would clearly result in higher levels of nicotine in blood.”

A 2025 study from the Wolfson Institute at Queen Mary University of London is the most recent and the cleanest, because it was not paid for by a manufacturer. Twenty smokers were given a 9 mg ZYN and “asked to keep the pouch in for up to 45 min, as per the manufacturer’s guidance, but to feel free to remove it whenever they wanted.” Nicotine came out slower than from a cigarette — “Tmax 30 min vs. 6 min” — but reached higher: “Cmax was higher than from cigarettes (27.9 vs. 19.5 ng/ml, t (19) =-2.17, p = 0.043).” The detail I keep coming back to is that blood nicotine had already “reached 13 ng/ml within 10 min.” A great deal happens in the first ten minutes. The remaining thirty-five buy the rest.

Its funding statement reads “N/A, the study was funded by internal funds,” and the authors “declare no competing interests.” That is unusual in this field and worth saying out loud.

Most of the nicotine leaves early

The BfR did its own laboratory testing on fifteen pouches and found the brands behave very differently in the opening minutes: “In four out of 15 samples, more than 70% of the total nicotine content was released in the first 5 minutes. In contrast, seven other samples released less than 60% of the nicotine they contained within the first 10 minutes.” For the set as a whole, it concluded that “most of the nicotine is released within the first 20 minutes.”

Independent laboratory work agrees on the shape while disagreeing wildly on the magnitude, and the disagreement is worth knowing about before you trust any single number. A 2026 flow-through dissolution study by Altria scientists found that “In the profile region between 0 and 20 min, we observed a total nicotine percent release of 93% for Zyn, 87% for on!, 84% for Rogue, 71% for Volt and Velo, 66% for Dryft, and 48% for Loop nicotine pouch products” — with Loop releasing only 38% of its content across a full hour, and never reaching a plateau. A different method, validated against human use, puts ZYN at “15.3 ± 7.2% and 50.1 ± 14.5%” released at 15 and 60 minutes. Same brand, two methods, numbers that do not reconcile.

My reading is that the direction of travel is solid — the opening minutes do most of the work, and brand differences in those minutes are large — while any precise “X% done at Y minutes” claim is quoting one laboratory method rather than a fact about your mouth.

You throw away about half of it

In the one study that weighed the discarded pouches, participants used them for a full hour and extraction came out at 55.9% for a 3 mg pouch, 59.1% for a 6 mg and 50.4% for an 8 mg. The BfR’s summary: “after 60 minutes of use, at least half of the nicotine contained in the pouch is absorbed by the body.”

Snus, for comparison, gives up far less: 32.0% and 32.6% for the two Swedish products tested, and 18.9% for American moist snuff. The reason is pH. The pouches the BfR tested had a median pH of 8.8, and at that alkalinity “The median proportion of free-base nicotine was 86%” — uncharged nicotine crosses the oral mucosa far more readily than the protonated form.

So at a conventional 30 minutes you are discarding well over half the nicotine you paid for. That is not a reason to leave the pouch in longer. It is a reason to understand that the number on the can is a capacity, not a delivery.

What going longer actually does

The most striking thing in the BfR’s dossier is a comparison of the same strength at two durations. In the BfR and LMU study, pouches used for 20 minutes, “Pouches without nicotine and pouches with 6 mg nicotine did not lead to an increase in heart rate.” In the 60-minute Lunell study, the 6 mg pouch produced a median maximum heart-rate rise of 10.5 beats per minute, statistically significant against the 3 mg arm. The BfR states the contrast itself: “In contrast to the study from Lunell, which demonstrated an increase in heart rate after using 3 mg and 6 mg pouches for 60 minutes, no increase in heart rate following the use of 6 mg pouches for 20 minutes was observable in the BfR and LMU study.”

Same milligrams, different clock, different cardiovascular effect. Duration is the variable you control most easily and the one least discussed.

Irritation is near-universal and does scale with dose: “all nicotine pouch users reported oral mucosa irritation ranging from moderate (0–20 mg nicotine) to severe (30 mg).” A 2024 Latvian case series of users with oral lesions found that “oral mucosal changes tend to occur at the same location where sachets are placed,” and that although “Nicotine pouch manufacturers recommend using one pouch for approximately 30 min”, respondents “tended to exceed this time, even using the sachets for 1 h or more.” It adds that there is “no evidence that lesions vanish after the cessation of nicotine pouch use”.

Keep the strength of that evidence in proportion. A 2024 systematic review of pouches and oral health found only three usable studies and judged that “All studies were deemed to have a high risk of bias”; the one prospective study in it “found no changes in the incidence of gingival retraction during the study”. The FDA is equally frank about the state of knowledge, recording in its 2026 modified-risk review of ZYN that “there are currently no long-term epidemiological studies pertaining specifically to the proposed MRTPs or nicotine pouch use”, and that the applicant “did not submit any observational or clinical studies directly evaluating health outcomes” for them.

What the FDA has measured is the behaviour this article is about. Reviewing ZYN’s application, it found misuse “was common among current U.S. users, including longer durations of use (80.7% reporting using the product >60 minutes always or sometimes)”. Four in five American ZYN users exceed the maker’s own ceiling at least sometimes.

The regulators cap the pouch, not the session

It is worth noticing what the law does and does not do here. Every nicotine limit I can find is a limit on what is in the pouch, with nothing at all said about how long it stays in your mouth:

Jurisdiction	Limit	Basis	Instrument
Latvia	4 mg/g	Concentration	Tabakas izstrādājumu… aprites likums, 3. pants (5¹)
Canada	4 mg	Per dosage unit; above this it is a prescription drug	Prescription Drug List amendment, effective 14 January 2026
Denmark	9.0 mg	Per pouch — tobacco-free products only	BEK nr. 249 af 04/03/2025, § 2
Czechia	12 mg per dose, 240 mg per pack, min. 20 doses	Per dose and per pack	Vyhláška 141/2023 Sb., § 2(4)–(5)
United States	11 mg is the strongest product FDA has authorised	Per pouch, product by product	FDA authorised nicotine pouch list, current as of 21 August 2026

Denmark’s is the instructive one. Its 9.0 mg ceiling is set by an order “on limit values for nicotine content in tobacco surrogates”, and § 1 defines a nicotine pouch as a tobacco surrogate — so a tobacco chew bag, being a tobacco product rather than a surrogate, is not caught by it at all. A regulator can cap what a manufacturer puts in a pouch. Nobody regulates how long you leave it in, and on the evidence above that is the larger lever.

How I would choose a number

Take your brand’s stated time as the ceiling, not the target. If your brand gives none — and LOOP and Skruf give none — treat 30 minutes as the ceiling, because that is the category norm and what the BfR describes.

Beyond that, three things follow from the evidence rather than from habit. The first ten to twenty minutes deliver most of what the pouch has to give, so if you want less nicotine, shorten the session rather than hunting for a weaker can; a shorter session with a familiar pouch is a more predictable change than a new product with an unfamiliar release curve. If you are going past an hour, you are off-label by the maker’s own instruction and inside the behaviour the FDA calls misuse. And whatever you settle on, move where you park it — the lesion evidence is weak but consistent on one point, which is that changes show up where the pouch sits.

Frequently asked questions

Is it bad to leave a pouch in overnight?

No manufacturer or regulator endorses it, and every maker that publishes a time caps it at 30 or 60 minutes. Blood nicotine keeps climbing while a pouch is in place, and the BfR’s heart-rate data shows the same strength producing a measurable cardiovascular effect at 60 minutes that it does not produce at 20. There is also a choking and swallowing risk the manufacturers specifically warn against.

Can I reuse a pouch?

ZYN’s answer is categorical: “No, ZYN nicotine pouches are single use only and should never be reused.” A used pouch does still contain nicotine — roughly half, after a full hour — but it has been in your mouth, it has lost its flavour load, and the release curve has flattened.

Does a stronger pouch need less time?

Not in any way the evidence supports. The BfR found “No linear correlation… between the nicotine content in the pouch and the nicotine concentration in the blood”, and cites two 10 mg pouches from different makers producing peaks of 11.9 and 17.1 ng/ml. Release rate varies more between brands than the label does, so you cannot convert a time from one brand to another by milligrams.

Why do I get a head rush at five minutes and nothing at twenty-five?

That is the shape of the curve, not the pouch failing. In the BfR and LMU study “the strongest effect was observed after just five minutes”, and heart rate “declined slightly after 20 minutes compared with the maximum measured at 5 minutes. This decline was more pronounced after 30 minutes.”

Is swallowing the saliva a problem?

ZYN says “While using ZYN, you may naturally swallow saliva. However, the pouch itself should not be swallowed.” Swallowed nicotine is absorbed, but it goes through the liver first and much less of it reaches the bloodstream than by the mucosal route. Swallowing the pouch is the thing to avoid — the FDA’s review records that “The most common issue related to improper use of the product was swallowing or ingestion of the pouch.”

How long do the effects last after I take it out?

Longer than the session. In the 60-minute study the elimination half-life ran from 109 to 152 minutes depending on the product, so nicotine is still circulating for hours after the pouch is in the bin.

Sources

Bundesinstitut für Risikobewertung, Health risk assessment of nicotine pouches, updated BfR Opinion No. 023/2022, 7 October 2022 — Tables 3, 4 and 5, the in-vitro release findings, pH and free-base nicotine, the heart-rate comparison, oral mucosa irritation, and the note that “The first five studies were conducted by manufacturers or with financial support of manufacturers.”
Przulj D., Myers Smith K., McRobbie H., Pesola F., Ananina I., Ladmore D., Hajek P., Nicotine delivery from and user reactions to nicotine pouches compared to cigarettes, Psychopharmacology (2025). Funding: “N/A, the study was funded by internal funds.” Competing interests: “The authors declare no competing interests.”
Platt S.P. et al., Dissolution and physical characterization of oral nicotine pouch products, Scientific Reports (2026). “This research was funded by Altria Client Services LLC, an affiliate of Helix Innovations LLC, the manufacturer of on! nicotine pouches.”
Knopp M.M., Kiil-Nielsen N.K., Masser A.E., Staaf M., Introducing a novel biorelevant in vitro dissolution method…, Separations 9(2):52 (2022). Declared “This research received no external funding”, while two authors are employees of Swedish Match North Europe AB and the lead author “has received funding from Swedish Match North Europe AB”.
US Food and Drug Administration, ZYN PMTA Technical Project Lead review, 13 January 2025 — the misuse figures and the swallowing finding.
US Food and Drug Administration, Nicotine pouch products authorized by the FDA, content current as of 21 August 2026 — 43 authorised products, the strongest being ZYN ULTRA Smooth 11 mg.
US Food and Drug Administration, ZYN modified risk tobacco product decision summary, posted 15 July 2026 — the absence of long-term epidemiological studies on nicotine pouch use.
Miluna-Meldere S. et al., Oral mucosal changes caused by nicotine pouches: case series, Diagnostic Pathology 19:127 (2024). I could not retrieve this paper’s funding statement.
Rungraungrayabkul D. et al., What is the impact of nicotine pouches on oral health: a systematic review, BMC Oral Health 24:889 (2024).
Statutes and regulations: Latvia, Tabakas izstrādājumu, tabakas aizstājējproduktu… aprites likums, 3. pants (5¹); Canada, Prescription Drug List: notice of amendment, nicotine buccal pouches, 14 January 2026; Denmark, BEK nr. 249 af 04/03/2025, §§ 1–2; Czechia, Vyhláška č. 141/2023 Sb., § 2.
Manufacturer instructions, read on 12 October 2026: ZYN FAQ, Nordic Spirit, VELO and Lundgrens FAQ, Pablo, LOOP, Skruf.

Last verified: 12 October 2026.