Evidence map›Paper›PMID 39505323›Full record

ArticleAddiction (Abingdon, England)2025

Characteristics and ingredients of disposable 'Elfbar' e-cigarettes sold in the United States and the United Kingdom.

Noel J Leigh, Michelle K Page, Hasan Jamil, Maciej L Goniewicz

Abstract read
In one paragraph

Article in Addiction (Abingdon, England), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed.

  1. Trends in product characteristics of disposable e-cigarettes sold by US online stores between 2022 and 2024.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2026
    Article
  2. Review
  3. Article
  4. Comparison of Nicotine and Selected Flavoring Contents Between Tobacco-Free and Tobacco-Containing Oral Pouches.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2026
    Article
  5. Article
  6. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Noel J LeighDepartment of Health Behavior, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA.ORCID 0000-0002-6850-9634
Michelle K PageDepartment of Health Behavior, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA.ORCID 0000-0002-5962-8586
Hasan JamilDepartment of Health Behavior, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA.
Maciej L GoniewiczDepartment of Health Behavior, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA.ORCID 0000-0001-6748-3068

Funding

Two-Spirit Films in Indigenous Cancer HealthP30CA016056 · NCI · ROSWELL PARK CANCER INSTITUTE CORP · PI CANDACE S JOHNSON · 1985 to 2026
$116.6M
Vaporized Nicotine Product Initiation Among Youth in the US, Canada, and England: Methods to Predict Uptake and Policy EfficacyP01CA200512 · NCI · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI FONG, GEOFFREY T · 2016 to 2025
$25.3M
NCI NIH HHS P01 CA200512NCI NIH HHS P30 CA016056
6 · The paper itself

Abstract

BACKGROUND AND

aimsAs of 2023, Elfbar remains the most popular brand of disposable e-cigarette available in the United States (US) and United Kingdom (UK), with similar flavor options in both countries. At the time of this study, 5% nicotine Elfbar BC5000 was the only version available in the US, whereas 2% Elfbar 600 was the most popular in the UK. This study measured differences in nicotine content and form, aerosol emissions and flavoring chemicals in the US and UK Elfbar products.

methodA convenience sample of eight Elfbar devices sold in the US and UK, consisting of two Elfbar models with four identical flavor options (Peach Ice, Strawberry Banana, Strawberry Ice and Strawberry Kiwi) purchased between December 2022 and February 2023, were laboratory tested. We measured nicotine concentration, form and total content. We also determined aerosol emissions and estimated the nicotine dose delivery per puff. We identified solvents and flavoring chemicals in these products.

resultsElfbar products within the same country had similar nicotine content, concentration, form and solvents, but they differed in flavoring chemicals. US Elfbar contained, on average, higher volume (mean ± standard deviation = 6.5 ± 0.5 versus 1.8 ± 0.3 ml) of nicotine solution with a higher concentration (41.8 ± 2.3 versus 19.7 ± 1.2 mg/ml) than the UK Elfbar. An estimated dose of nicotine delivered per puff was four times higher from US Elfbar than UK Elfbar. There were differences in the type and amount of flavoring chemicals used in US and UK Elfbars, including a higher concentration of a synthetic coolant WS-23 in US Elfbar than in UK Elfbar (17.8 ± 1.5 versus 12.9 ± 5.4 mg/ml).

conclusionsBecause the amount of nicotine found in the US Elfbar e-cigarettes is equivalent to that found in eight UK Elfbar e-cigarettes, people who use Elfbar sold in the US have access to much more nicotine from a single device than those who use Elfbar sold in the United Kingdom.

Indexed as

Electronic Nicotine Delivery SystemsFlavoring AgentsNicotineAerosolsHumansUnited KingdomUnited StatesVapingAerosolsFlavoring AgentsNicotineDisposable e‐cigarettesElfbarflavoringsnicotinesynthetic coolantsvaping

Identifiers

PMID39505323
PMCPMC11813673

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.