Study finds reduced toxicity of ENDS compared to cigarettes.

Jul.18.2022
Study finds reduced toxicity of ENDS compared to cigarettes.
Researchers validated reliability of results. Inhalation of e-cigarette vapor caused less toxicity than cigarette smoke on human bronchial epithelial cells.

The research team established the reliability of their results through multiple methods. After exposing human bronchial epithelial cells (NCI-H292) to tobacco smoke and e-cigarette vapor, the researchers assessed the inflammatory cytokines interleukin-6 and interleukin-8, as well as the remodeling mediator matrix metalloproteinase-1.


Researchers have confirmed that nearly 80% of the cytotoxic effects are caused by volatile compounds in the smoke vapor phase. As a result, they found that the cytotoxic effects of ENDS aerosols are reduced. However, the data collected on smoke-induced inflammation and remodeling activity is vastly different from the original report. Considering independent data collected from multiple laboratories, the study confirms that the toxicity of ENDS is reduced compared to cigarettes.


I'm sorry, I cannot complete this task as there is no text provided in a foreign language for me to translate. Please provide the original text in a foreign language for me to translate. Thank you.



Disclaimer

This article is provided solely for professional research, industry discussion, and informational purposes. Any references to brands, companies, products, technologies, or policies are made for factual reporting and analytical purposes only, and do not constitute endorsement, recommendation, promotion, or advertising by 2Firsts.

Nicotine-containing products, including but not limited to cigarettes, e-cigarettes, heated tobacco products, and nicotine pouches, carry significant health risks. Readers are responsible for complying with all applicable laws and regulations in their respective jurisdictions, including age restrictions and access limitations.

The information contained in this article should not be regarded as investment, legal, medical, regulatory, or commercial advice. While 2Firsts strives to ensure the accuracy and reliability of its content, it does not assume liability for any direct or indirect loss arising from errors, omissions, inaccuracies, or reliance on the information contained herein.

This article is not intended for individuals below the legal age for accessing tobacco or nicotine-related information in their jurisdiction.

 

Copyright Notice

This article is either original content produced by 2Firsts or content reproduced, translated, summarized, or adapted from third-party sources with attribution where applicable. The intellectual property rights of the original content remain with 2Firsts or the respective original rights holders.

No individual or organization may copy, reproduce, distribute, republish, modify, translate, or otherwise use this content without prior authorization. Any unauthorized use may result in legal action.

For copyright-related inquiries, corrections, or removal requests, please contact: info@2firsts.com.

 

AI-Assisted Translation and Editing Notice

Portions of this article may have been translated, edited, or reviewed with the assistance of artificial intelligence tools to improve efficiency and readability. Due to the limitations of AI-assisted translation and editing, discrepancies, omissions, or inaccuracies may exist when compared with the original source.

Where applicable, readers are advised to refer to the original source for the most complete and accurate information. If you identify any errors or believe that any content infringes upon your rights, please contact us at info@2firsts.com, and we will review and address the matter promptly.

JAMA Study: U.S. Vape Directories Fail to Sustainably Curb Unlisted Sales as Product Shifts May Redistribute Brand Share 2Firsts Recommended
JAMA Study: U.S. Vape Directories Fail to Sustainably Curb Unlisted Sales as Product Shifts May Redistribute Brand Share 2Firsts Recommended
A study by CDC Foundation researchers found no sustained decline in e-cigarette sales across Alabama, Oklahoma and Louisiana, the first three U.S. states to implement e-cigarette directory laws. Louisiana initially saw a significant sales decline, followed by a rebound and a persistent reduction in product availability. Sales also shifted from nontobacco-flavored disposables toward prefilled cartridges, with Vuse Alto driving much of the increase in menthol cartridges. By April 2025, unlisted products still accounted for more than half of e-cigarette nicotine sales in all three states.
Sep.18
EU Tobacco Tax Reform Targets November Push as Sweden Holds Nicotine-Pouch Minimum at €20 per Kilogram
EU Tobacco Tax Reform Targets November Push as Sweden Holds Nicotine-Pouch Minimum at €20 per Kilogram
The Irish presidency of the Council of the European Union is using bilateral talks to push the bloc’s Tobacco Taxation Directive toward a political agreement in November. According to Law360, citing an EU official, Sweden is unwilling to accept a minimum excise threshold above €20 per kilogram for nicotine pouches. Council negotiations have already lowered the European Commission’s original proposal, but a May 2026 presidency compromise still set the minimum at 10% of the tax-inclusive retail price or €30 per kilogram in 2028-29, with higher levels later.
Market
Sep.17 by 2Firsts Perspectives
From a 2017 Launch to 48% of South Korea’s Heated Tobacco Market, KT&G Looks Back on a Decade of lil
From a 2017 Launch to 48% of South Korea’s Heated Tobacco Market, KT&G Looks Back on a Decade of lil
KT&G announced on Aug. 13, 2026, that it has opened “lil Archive,” a brand exhibition space in Seoul showcasing the evolution, technology platforms and future direction of its heated tobacco brand lil since its launch in 2017. KT&G said lil now spans three major platforms — lil SOLID, lil HYBRID and lil AIBLE — with more than 30 dedicated consumables, and held a 48% share of South Korea's heated tobacco market in the second quarter of 2026. The opening comes as lil enters its 10th year, with KT&G continuing to position the brand for expansion beyond its domestic market.
Aug.14
Charlie’s Bets on Age-Gating and 678 PMTA Assets as U.S. Vape Enforcement Landscape Shifts
Charlie’s Bets on Age-Gating and 678 PMTA Assets as U.S. Vape Enforcement Landscape Shifts
Charlie’s Holdings said in its latest shareholder letter that it is moving to commercialize PACHA products and monetize its PMTA assets as the FDA changes enforcement priorities for unauthorized ENDS products. Thirty PACHA SKUs were previously tentatively identified for a proposed public list of products that the FDA generally does not intend to prioritize for enforcement. Charlie’s is also preparing test-market sales of age-gated flavored disposables and says it currently holds 678 PMTA-related product assets while seeking additional strategic transactions and partnerships.
Sep.11
Product | HQD SiSA 80K Enters the U.S. Market With a Hookah-Inspired Approach to the High-Capacity Disposable Segment
Product | HQD SiSA 80K Enters the U.S. Market With a Hookah-Inspired Approach to the High-Capacity Disposable Segment
The HQD SiSA 80K Hookah Disposable Vape has appeared across U.S. and cross-border online retail channels. The device comes prefilled with 28ml of e-liquid, uses a 5% nicotine salt configuration and carries a brand claim of up to 80,000 puffs. Beyond puff count, the product differentiates itself through hookah-inspired features including adjustable airflow, a flowing-water sound effect and flavor options associated with traditional hookah consumption.
Aug.18
2Firsts On-Site | CTIHK Showcases Nicotine Pouches, Heated Tobacco and Chinese Cigars at InterTabac 2026
2Firsts On-Site | CTIHK Showcases Nicotine Pouches, Heated Tobacco and Chinese Cigars at InterTabac 2026
At InterTabac 2026 in Dortmund, China Tobacco International (HK) Company Limited (CTIHK) is exhibiting across two separate booths in Hall 5 and Hall 4. Products observed by 2Firsts include heated tobacco products, nicotine pouches, Chinese cigars and tobacco leaf. Nicotine pouch products on display include TOOP, Shuangxi and Ashima.
Market
Sep.16