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

Snowplus Enters Japan’s FamilyMart Network With Zero-Nicotine NEO Line and Kishidan Campaign
Snowplus Enters Japan’s FamilyMart Network With Zero-Nicotine NEO Line and Kishidan Campaign
Snowplus distributor H&S said the zero-nicotine, zero-tar NEO vaping line will begin rolling out across FamilyMart stores in Japan from September 14, 2026, excluding some locations. The DASH line will also be sold at selected FamilyMart stores in southern Kyushu and Okinawa. Snowplus simultaneously named Japanese rock band Kishidan as a brand ambassador, combining convenience-store distribution with a broader consumer marketing push in Japan.
Sep.15
Gallery | InterTabac 2026 Opens as VAPORESSO, SKE, GREENTANK, GEEK BAR and Other Brands Take the Floor
Gallery | InterTabac 2026 Opens as VAPORESSO, SKE, GREENTANK, GEEK BAR and Other Brands Take the Floor
InterTabac 2026 opened in Dortmund, Germany, on September 15 alongside NUBIZ and InterSupply. According to the latest figures released by the organizer, the three trade shows bring together around 750 exhibitors from 64 countries. On site, 2Firsts observed vaping and related brands including VAPORESSO, DOJO, SKE, GREENTANK, GEEK BAR, HQD and ELUX.
Special Report
Sep.15
South Korea's Tobacco Plan Excludes 6-Methyl Nicotine as Customs Tightens Import Controls and Analog Liquid Imports Fall 83%
South Korea's Tobacco Plan Excludes 6-Methyl Nicotine as Customs Tightens Import Controls and Analog Liquid Imports Fall 83%
South Korea's government unveiled its first Tobacco Harm Management Basic Plan for 2027–2031 on October 29, 2026, proposing broader testing of vaping and heated tobacco products while excluding nicotine analogs such as 6-methyl nicotine. Synthetic nicotine came under tobacco regulation on April 24, and a June investigation found 6-methyl nicotine in 12 liquid inhalation products marketed as nicotine-free. Customs data released in September showed that imports of nicotine analog solutions fell 83.3%, from 12 metric tons in January–April to 2 metric tons in May–August. By September 20, imports had reached approximately 15 metric tons for the year, with 99.99% originating from China. Customs authorities have tightened pre-clearance testing and supply-chain documentation requirements, while the MFDS expects to complete its assessment of nicotine analog hazards by the end of 2026.
Regulations
Nov.04
EU Commission Clarifies Vaping, Smokeless Nicotine Use in Proposed Cardiovascular Checks
EU Commission Clarifies Vaping, Smokeless Nicotine Use in Proposed Cardiovascular Checks
The European Commission has clarified to 2Firsts that its proposed cardiovascular health checks would assess smoking, vaping and the use of smokeless nicotine products as part of patients’ medical histories. The Commission also said Member States may organise additional checks within their healthcare systems. In the same response, it pointed to JRC research on e-cigarettes, heated tobacco products and nicotine pouches that has fed into the evaluation of EU tobacco legislation.
Nov.09
2Firsts On-Site | PMI Brings IQOS, ZYN, VEEV and Marlboro Together at Its “Boulevard” at InterTabac 2026
2Firsts On-Site | PMI Brings IQOS, ZYN, VEEV and Marlboro Together at Its “Boulevard” at InterTabac 2026
At InterTabac 2026 in Dortmund, PMI is presenting multiple brands and products along “The PMI Boulevard,” including IQOS, ZYN, VEEV and Marlboro. On-site images captured by 2Firsts show dedicated spaces including the IQOS Boutique, ZYN Café, PMI Gallery and Marlboro Office
Market
Sep.16 by 2Firsts Perspectives
On-Site Report | CTP Details PMTA Backlog, 180-Day Review Goal and sPMTA Process
On-Site Report | CTP Details PMTA Backlog, 180-Day Review Goal and sPMTA Process
FDA’s Center for Tobacco Products detailed new PMTA review data and process changes at the 2026 FDLI conference. Pending PMTAs fell from about 450,000 at the start of 2025 to 135,000 by September 2026. CTP also discussed its 180-day review goal, current sPMTA pilot, alternate-supplier planning, more than 50,300 pending SE reports, and lessons from the nicotine pouch pilot already being applied to ENDS review.
Regulations
Oct.07