New Study by Yale University Raises Concerns About E-Cigarettes

News by 2FIRSTS.ai
Aug.13.2024
New Study by Yale University Raises Concerns About E-Cigarettes
Yale study reveals some e-cigarettes may contain potent nicotine-like chemicals, raising health concerns beyond FDA regulation.

According to a report by Newsweek on August 12, a previous study by Yale University found that some e-cigarettes may contain chemical compounds similar to nicotine that could have unknown effects on health.


These nicotine alternatives interact with receptors in the brain, without being subject to FDA restrictions and regulations. As a result, these products are able to be marketed with flavors that appeal to young people and avoid tobacco taxes.


An FDA spokesperson stated that these new chemicals may be more potent than nicotine and could potentially affect the brain development, learning abilities, and memory of adolescents.


FDA Public Affairs Specialist Jim McKinney told Newsweek that...


The FDA is addressing this issue from the perspective of the entire agency and will continue to utilize all resources within its authority to protect the public, especially American adolescents, from potentially harmful addictive products.


McKinney points out that, although more research is needed, some emerging data suggests that these nicotine analogs may be more potent than nicotine itself, which is already highly addictive, altering adolescent brain development and producing long-term effects.


According to research, nicotine analogs are chemical substances that are structurally very similar to nicotine and therefore target the same receptors in the brain. Examples include 6-methyl nicotine and nicotineamide. A study in rodents suggests that 6-methyl nicotine may be more toxic than nicotine. Furthermore, because these compounds are not subject to the same strict regulations as traditional nicotine, the ingredients listed on labels may not always match the actual ingredients in the products.


Dr. Hanno Erythropel, a scientist at the Yale School of Medicine, stated in a press release,


In conclusion, the company is actually trying to evade regulation by introducing new products containing nicotine analogues with unknown health and addiction risks.


In a study published in the journal "JAMA Network," the researcher and their colleagues analyzed two e-cigarette and e-liquid products on the market. The first product, Spree Bar, claimed to contain 5% of 6-methyl nicotine (50 milligrams/gram), while the second product, Nic-Safe, was tested at four concentrations—0, 12, 24, and 36 milligrams/milliliter.


The research results show that both products do not contain the ingredients as specified on their labels. Spree Bar actually contains 90% less 6-methyl nicotine than advertised, while Nic-Safe contains a low concentration of 6-methyl nicotine without it being clearly marked on the label (excluding tested nicotine-free products).


FDA spokesperson Mackinney said that


In general, the FDA does not comment on specific studies, but instead uses them as part of the evidence to further understand specific issues and help achieve its mission of protecting public health. Regarding nicotine mimetics, the FDA is aware that some companies are reported to be producing products that may contain compounds with chemical structures or properties different from nicotine.


We welcome news tips, article submissions, interview requests, or comments on this piece.

Please contact us at info@2firsts.com, or reach out to Alan Zhao, CEO of 2Firsts, on LinkedIn


Notice

1.  This article is intended solely for professional research purposes related to industry, technology, and policy. Any references to brands or products are made purely for objective description and do not constitute any form of endorsement, recommendation, or promotion by 2Firsts.

2.  The use of nicotine-containing products — including, but not limited to, cigarettes, e-cigarettes, nicotine pouchand heated tobacco products — carries significant health risks. Users are responsible for complying with all applicable laws and regulations in their respective jurisdictions.

3.  This article is not intended to serve as the basis for any investment decisions or financial advice. 2Firsts assumes no direct or indirect liability for any inaccuracies or errors in the content.

4.  Access to this article is strictly prohibited for individuals below the legal age in their jurisdiction.

 

Copyright

 

This article is either an original work created by 2Firsts or a reproduction from third-party sources with proper attribution. All copyrights and usage rights belong to 2Firsts or the original content provider. Unauthorized reproduction, distribution, or any other form of unauthorized use by any individual or organization is strictly prohibited. Violators will be held legally accountable.

For copyright-related inquiries, please contact: info@2firsts.com

 

AI Assistance Disclaimer

 

This article may have been enhanced using AI tools to improve translation and editorial efficiency. However, due to technical limitations, inaccuracies may occur. Readers are encouraged to refer to the cited sources for the most accurate information.

We welcome any corrections or feedback. Please contact us at: info@2firsts.com

Special Report | Can Nicotine Be Replaced? 6-MN Is Already on the Market While Key Human Evidence Is Still Missing
Special Report | Can Nicotine Be Replaced? 6-MN Is Already on the Market While Key Human Evidence Is Still Missing
Nicotine analogues such as 6-methylnicotine are already appearing in e-cigarettes and oral pouches, even as key human evidence remains limited. A new Nixodine-S study adds nonclinical data showing differences from nicotine in cytotoxicity and receptor activity, while independent studies point to a more complex toxicological picture. With supply-chain activity growing and FDA seeking clearer authority over nicotine analogues, the industry now faces a larger question: what evidence is needed before these substances can credibly replace nicotine?
SCIENCE
Sep.23
AIR Global Starts Debt Refinancing Four Months After Nasdaq Listing With About $400 Million Notes Expected
AIR Global Starts Debt Refinancing Four Months After Nasdaq Listing With About $400 Million Notes Expected
AIR Limited, a wholly owned subsidiary of AIR Global, has launched an offering of U.S. dollar-denominated senior unsecured notes, with proceeds primarily intended to repay its existing term loan and revolving credit facility. AIR has not disclosed the final size, maturity or coupon; Refinitiv, citing Moody's, reported an expected issuance of approximately $400 million and a Ba3 rating. AIR had about $412.4 million outstanding under the two bank facilities at June 30 and net debt of $344.8 million. In the first half of 2026, AIR's Al Fakher-led flavored shisha molasses business generated about 99% of company revenue, while New Growth Categories including Crown Switch produced $2.2 million in revenue and remained loss-making on an adjusted EBITDA basis.
Sep.23
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
FRE and ALP Push Modern Oral to 48% of Q2 Sales as Turning Point Brands Changes CEO and Lowers Profit-Guidance Ceiling
FRE and ALP Push Modern Oral to 48% of Q2 Sales as Turning Point Brands Changes CEO and Lowers Profit-Guidance Ceiling
Turning Point Brands said Executive Chairman David E. Glazek will become CEO on October 1, replacing Graham Purdy, who is stepping down for personal reasons. The company narrowed its 2026 adjusted EBITDA outlook to $70 million-$80 million from $70 million-$90 million while maintaining Modern Oral gross sales guidance of $330 million-$350 million and net sales guidance of $260 million-$270 million. In the second quarter, Modern Oral net sales rose 128% to $68.4 million and accounted for 48% of company-wide net sales. Adjusted EBITDA fell 50% year over year. TPB shares closed about 10% lower on September 21.
Market
Sep.22 by 2Firsts Perspectives
UK Vape Duty Starts in October as Hayati, DOJO and Others Launch Lower-Capacity Products With Lower Per-Unit Tax
UK Vape Duty Starts in October as Hayati, DOJO and Others Launch Lower-Capacity Products With Lower Per-Unit Tax
The UK's Vaping Products Duty will take effect on October 1, 2026, at a flat rate of £2.20 per 10ml of vaping liquid. Ahead of implementation, DOJO, PIXL and Hayati have introduced or been reported to be adding lower-capacity tiers alongside larger products. DOJO has added a 6ml BLAST7K Fresh below its 10ml BLAST10K Fresh, PIXL offers both a 12ml 8000 and a 6ml 5K, while retailer Ninja Vapes says Hayati is preparing a 7ml 4K alongside its existing 12ml 6K. The pattern points to a growing lower-capacity tier in the UK market, although the brands have not all explicitly linked the changes to the new duty.
Sep.23
Product | KIWI Launches Spark 2 and Spark 2 Pro in Germany, Two Hardware Tiers Share Backward-Compatible 2ml Pods
Product | KIWI Launches Spark 2 and Spark 2 Pro in Germany, Two Hardware Tiers Share Backward-Compatible 2ml Pods
KIWI has launched the Spark 2 and Spark 2 Pro refillable pod systems in Germany at official prices of €18 and €29, respectively. Spark 2 uses an 800mAh removable lithium-ion battery in a pen-style body, while Spark 2 Pro features a 1,400mAh removable battery, a box-shaped design and vibration feedback every 20 puffs. Both devices use the same 2ml Spark V2 pods in 0.8Ω and 1.2Ω versions, with AirSync airflow adjustment and a choice between Cotton Tips and conventional Drip Tips. The new pods also remain compatible with the original KIWI Spark.
News
Sep.29 by 2Firsts Perspectives