Mint Flavors in E-cigarettes May Harm Respiratory Health

Aug.08.2022
Mint Flavors in E-cigarettes May Harm Respiratory Health
A study by a University of Hawaii team suggests mint in e-cigarettes may harm respiratory health, with rising usage among young people.

According to the latest research from a team of experts at the University of Hawaii, menthol in e-cigarettes may be detrimental to respiratory health. This discovery comes at a time when e-cigarette use among Hawaii's youth is on the rise.


Yi Zuo, a mechanical engineering professor and pediatric adjunct professor at the University of Hawaii at Manoa, has developed a groundbreaking method for studying the health effects of e-cigarette aerosols. This breakthrough research was published in June 2022 in The American Journal of Physiology - Lung Cellular and Molecular Physiology, which showed that menthol in e-cigarettes leads to biophysical suppression of pulmonary surfactant.


Research conducted by Zuo has found that flavorings, particularly menthol, used in electronic cigarettes can damage the lung surfactant, also known as pulmonary surfactant, which is essential for maintaining normal respiratory mechanics. Therefore, Zuo's study suggests that menthol in e-cigarette aerosols may have adverse effects on users' respiratory health.


According to Zuo, "E-cigarettes were initially marketed as a healthier and safer alternative to traditional smoking when they first appeared in the mid-2000s." "However, increasingly more research evidence, particularly long-term (over 10 years) toxicology data that has emerged in recent years, suggests that e-cigarettes are not as safe as initially promised.


According to a youth behavior risk survey conducted by the Mānoa College of Education, the use of electronic cigarettes among young people in Hawaii is on the rise. Between 2015 and 2019, the report found that the percentage of survey respondents who reported using e-cigarettes at least one day in the 30 days prior to the survey increased from 25.1% to 30.6%. The percentage of respondents who reported using e-cigarettes for more than 20 days in the 30 days prior to the survey also increased from 3.6% in 2015 to 10.4% in 2019.


The flavors are the main attraction for e-cigarette users, especially young people. As of 2018, there were over 15,000 different e-cigarette flavors available on the market. Although most of the flavorings used in e-cigarettes are food-grade additives, their impact on respiratory safety and health is largely unknown.


Menthol is a substance found in mint and other mint-related plants. It provides a cooling and soothing sensation and is used to alleviate mild pain and irritation. It is added as a flavoring agent in products such as cough syrups, beverages, chewing gum, and candies. However, these products are not aerosolized or inhaled during use. In contrast, electronic cigarette companies add menthol to their products to make them more appealing and seemingly less harmful when used.


Zuo hopes that this research will contribute to a better understanding of the impact of electronic cigarettes on health, particularly for young people, and will lead to improved regulation of electronic cigarette products. The study was a collaboration between Zuo's laboratory and professors Ellinor Haglund and Rui Sun from the Chemistry Department at UH Mānoa. The research was supported by the National Science Foundation Award and George F.


Statement:


This article is compiled from third-party information and is intended for industry professionals for the purposes of learning and exchanging information.


This article does not represent the views of 2FIRSTS and 2FIRSTS cannot confirm the truthfulness or accuracy of the article's content. The translation of this article is solely for industry communication and research purposes.


Due to limitations in the level of translation, the translated article may not accurately reflect the original text. Please refer to the original text for accuracy.


2FIRSTS aligns completely with the Chinese government on any domestic, Hong Kong, Macao, Taiwan, and international issues or positions.


Information compiled is the property of the original media and author. If there is any infringement, kindly contact us to have it removed.



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.

RLX Technology Dropped From FTSE All-World as International Business Reaches 68.5% of Q2 Revenue
RLX Technology Dropped From FTSE All-World as International Business Reaches 68.5% of Q2 Revenue
RLX Technology (NYSE: RLX) has been removed from the FTSE All-World Index, effective September 21. FTSE Russell records show RLX was already part of its global equity index universe by 2022, when its American depositary receipts were classified as China Large Cap securities. Trading volume rose to about 44.77 million shares on September 18, roughly 23 times the previous session's volume. RLX reported RMB1.0105 billion in second-quarter revenue, up 14.8% year over year, with international operations contributing 68.5%. The company also acquired a 51% stake in one of Western Europe's largest distributors of next-generation smoke-free and FMCG products in July.
Sep.22
NAS 2026 | Former FDA Tobacco Chief Mitch Zeller Calls for Shift From “End Game” to “End State”
NAS 2026 | Former FDA Tobacco Chief Mitch Zeller Calls for Shift From “End Game” to “End State”
At the 2026 New Approaches Summit in New York, former FDA Center for Tobacco Products Director Mitch Zeller called for the tobacco harm reduction debate to shift from the traditional “end game” toward defining a desired “end state.” He also highlighted unresolved concerns around dual use, argued that biomarkers of exposure may be more meaningful than cigarettes-per-day in assessing risk reduction, and said nicotine misperceptions remain a major barrier to public health progress.
Sep.25
Product | JT Expands Vote-Winning EVO Cacao Mint Crystal to Nationwide Retail in Japan, Adds 22-Stick Limited Pack at Same Price
Product | JT Expands Vote-Winning EVO Cacao Mint Crystal to Nationwide Retail in Japan, Adds 22-Stick Limited Pack at Same Price
Japan Tobacco (JT) will expand EVO Cacao Mint Crystal from limited channels to nationwide retail in Japan from October 6, 2026. The Ploom tobacco stick ranked first in the brand's first consumer voting campaign for new tobacco-stick SKUs held earlier this year. JT will also introduce a limited 22-stick pack at the same JPY 620 price as the standard 20-stick pack. The capsule-format product combines menthol with sweet, bittersweet cacao notes and adds a berry nuance when the capsule is crushed.
Sep.09
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
FDA Revises Import Alert 98-07 Rules, Bringing May Enforcement Priorities Into Unauthorized ENDS Detentions
FDA Revises Import Alert 98-07 Rules, Bringing May Enforcement Priorities Into Unauthorized ENDS Detentions
The U.S. Food and Drug Administration has revised the rules under Import Alert 98-07 to incorporate its May 2026 enforcement-priority policy for certain electronic nicotine delivery systems marketed without premarket authorization. The alert continues to allow detention without physical examination, or DWPE, for ENDS lacking required marketing authorization, while directing field divisions to apply the May risk-based framework. When necessary, detention or refusal decisions must also undergo review by the FDA's Center for Tobacco Products. Products including PACHA and Vuse Pro have already emerged as industry examples of the May policy, although enforcement discretion does not constitute FDA marketing authorization.
News
Sep.28 by 2Firsts Perspectives
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