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.

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
Special Report | China Opens Draft Mandatory Heated Cigarette Standard for Comment, Multiple Heating Technologies Remain in Scope
Special Report | China Opens Draft Mandatory Heated Cigarette Standard for Comment, Multiple Heating Technologies Remain in Scope
China’s State Tobacco Monopoly Administration (STMA) has released a draft mandatory national standard for heated cigarettes, setting out detailed requirements for tobacco sticks, heating devices and aerosols. The proposal treats the stick and device as parts of the same product system, focuses on minimum safety and quality requirements, and leaves several heating architectures within scope.
Special Report
Jul.29
Indiana’s Foreign-Made Vape Ban Takes Effect, Forcing Brands and Retailers to Adjust Supply Chains
Indiana’s Foreign-Made Vape Ban Takes Effect, Forcing Brands and Retailers to Adjust Supply Chains
A new Indiana law restricting the sale of foreign-made vape products has taken effect, requiring retailers to adjust inventory and sourcing practices. According to The Sun, WDRB and other reports, some local vape shops are reviewing product origins and supplier information to comply with the new requirements. The measure represents a broader shift in U.S. vape regulation, with oversight expanding beyond product authorization and sales rules toward manufacturing origin and supply-chain management.
Jul.24
Sesh touts independence, 8VC backing and retail reach as it challenges tobacco-owned pouch brands
Sesh touts independence, 8VC backing and retail reach as it challenges tobacco-owned pouch brands
U.S. nicotine pouch brand Sesh has emphasized its independence from Altria, Philip Morris International and British American Tobacco, along with backing from investors including 8VC, celebrity supporters and a retail footprint of more than 7,500 stores, as it seeks to differentiate itself in a market where major pouch brands are owned by large tobacco companies.
Regulations
Jul.07 by 2Firsts Perspectives
Reemtsma says German illegal e-cigarette seizures reached 70% of 2025 total, pouches 179%
Reemtsma says German illegal e-cigarette seizures reached 70% of 2025 total, pouches 179%
Reemtsma said its first-half 2026 black-market tracker for tobacco and nicotine products showed a continued rise in officially reported seizures in Germany, with illegal e-cigarette seizures reaching 70% of the full-year 2025 level and snus and nicotine pouch seizures reaching 179% of last year’s total.
Jul.08
Retail Case Study | Wisconsin Vape Market One Year After New Regulations: Johnny Vapes Reports 80% Sales Decline as Consumers Shift Online and Across State Lines
Retail Case Study | Wisconsin Vape Market One Year After New Regulations: Johnny Vapes Reports 80% Sales Decline as Consumers Shift Online and Across State Lines
According to WNCY on August 24, 2026, some independent vape retailers in Wisconsin say they have faced significant business pressure one year after new vape regulations took effect. Johnny Vapes, a retailer operating in northeast Wisconsin, said its store count fell from seven locations to four, sales declined by about 80%, and roughly 90% of its inventory was affected. Retailers said some consumers have shifted to online purchases or traveled to neighboring Michigan to buy vape products. The case highlights how local regulations can reshape retail operations, inventory management and consumer purchasing patterns.
Aug.28