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

Product | JTI Introduces Fully Dissolvable PERLZ Nicotine Pearls in UK, Expands Range From 30-Pearl Dispensers to 10-Pearl Sachets
Product | JTI Introduces Fully Dissolvable PERLZ Nicotine Pearls in UK, Expands Range From 30-Pearl Dispensers to 10-Pearl Sachets
Japan Tobacco International (JTI) has introduced PERLZ nicotine pearls in the UK, expanding its oral nicotine portfolio beyond conventional nicotine pouches. The fully dissolvable, multi-layer pearls are placed under the tongue and come in Mint and Berry flavors at concentrations of 1mg/g and 2mg/g, equivalent to approximately 0.3mg and 0.5mg of nicotine per pearl. UK retailer Haypp published four 30-pearl dispenser listings on July 31, 2026, followed by three 10-pearl sachet products on August 17. The dispensers retail for £6.50, while the sachets cost £2.50.
product
Oct.12
UK HMRC Issues One-Month Countdown Warning, Urges Vape Businesses to Prepare for New Tax Rules
UK HMRC Issues One-Month Countdown Warning, Urges Vape Businesses to Prepare for New Tax Rules
The UK’s Vaping Products Duty and Vaping Duty Stamps Scheme will take effect on October 1, 2026. All vaping liquids manufactured in or imported into the UK will face a flat excise duty of £2.20 per 10ml, whether or not they contain nicotine. Newly manufactured or imported products released onto the UK market from October 1 will require a valid duty stamp, while eligible existing unstamped inventory can continue to be sold through March 31, 2027. From April 1, 2027, all vaping products outside duty suspension must carry a valid stamp.
Sep.03
2Firsts Compliance Solutions Hosts PMTA Briefing on FDA Review Signals After JUUL2 Authorization
2Firsts Compliance Solutions Hosts PMTA Briefing on FDA Review Signals After JUUL2 Authorization
Following recent FDA authorizations for JUUL2 and ZYN ULTRA, 2Firsts Compliance Solutions held an online PMTA briefing on Sept. 4 to examine what the decisions may signal about review efficiency, scientific evidence and U.S. market access. Nearly 30 participants from brands, manufacturers, compliance service providers and investment firms joined the discussion.
2Firsts Events
Sep.06
South Korea Constitutional Court Upholds Volume-Based E-Liquid Tax, With Challenged Rates at KRW 370 and KRW 628 per Milliliter
South Korea Constitutional Court Upholds Volume-Based E-Liquid Tax, With Challenged Rates at KRW 370 and KRW 628 per Milliliter
South Korea's Constitutional Court has upheld fixed taxes on nicotine-containing e-cigarette liquids based on solution volume, ruling that challenged provisions imposing KRW 370 per milliliter in individual consumption tax and KRW 628 per milliliter in tobacco consumption tax do not violate the Constitution. The cases stemmed from historical disputes involving importers that reported nicotine as being extracted from tobacco stems rather than leaves. South Korea has since broadened its tobacco definition to include synthetic nicotine, while current tax laws provide reduced rates for certain products not derived from tobacco.
Sep.18
Trump Names Darrell Scott as CDC Tobacco Health Adviser, Citing Tobacco Risks and Harm-Reduction Solutions
Trump Names Darrell Scott as CDC Tobacco Health Adviser, Citing Tobacco Risks and Harm-Reduction Solutions
U.S. President Donald Trump has named Pastor Darrell Scott to serve as an adviser on tobacco health issues on the Centers for Disease Control and Prevention’s Advisory Committee to the Director. Trump said Scott would focus on the burden of tobacco-related disease and help examine ways to protect Americans from dangerous tobacco products while supporting solutions that reduce harm. Scott’s public career has largely centered on faith leadership, community advocacy and politics.
Sep.02
Reynolds Showcases Vuse Pro Flavors and VELO Nicotine Pouches at NACS Show 2026
Reynolds Showcases Vuse Pro Flavors and VELO Nicotine Pouches at NACS Show 2026
Reynolds American, a BAT subsidiary, showcased four Vuse Pro flavored e-cigarette pods and its VELO nicotine pouch portfolio at NACS Show 2026. Booth staff confirmed to 2Firsts that the Vuse Pro flavors are sold in the U.S., although they have not received FDA marketing authorization. BAT outlined plans to expand Vuse retail distribution and reported that VELO held a 30.5% year-to-date volume share of the U.S. modern oral nicotine category through August 2026. The booth also featured the newly launched VELO MAX range and merchandising displays combining cigarettes, vaping products and oral nicotine brands.
EXPO
Oct.09