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 | Philip Morris Japan Teams Up With Renowned French Audio Brand DEVIALET for Limited-Edition IQOS Priced 60% Above Standard Model
Product | Philip Morris Japan Teams Up With Renowned French Audio Brand DEVIALET for Limited-Edition IQOS Priced 60% Above Standard Model
Philip Morris Japan (PMJ) launched the limited-edition IQOS ILUMA i PRIME Soundsorial Model in collaboration with French audio brand DEVIALET on October 1, 2026. Featuring sound-wave patterns, a silver-and-black finish and a gradient holder, the heated tobacco device is priced at JPY 15,980, including tax, and is available at four IQOS stores in Japan. According to Japanese media citing a PMJ representative, about 1,900 units were allocated to the Japanese retail market. A separate Soundsorial Collection, combining the device with DEVIALET Gemini II earbuds, includes 440 sets allocated to Japan for a membership prize draw.
product
Oct.23
Australia Adds 6-Methylnicotine to Schedule 9 Prohibited Substances, Effective October 1
Australia Adds 6-Methylnicotine to Schedule 9 Prohibited Substances, Effective October 1
Australia's Therapeutic Goods Administration published a final decision on September 25 to classify 6-methylnicotine as a Schedule 9 prohibited substance under the Poisons Standard, effective October 1, 2026. TGA said the chemical has been reported in e-cigarette liquids sold in Australia and marketed as nicotine-free or nicotine alternatives, while evidence also indicates its use in preparations such as oral pouches. The government originally proposed a Schedule 7 classification but ultimately adopted the stricter Schedule 9 designation, citing acute toxicity, dependence risk, use in unapproved consumer products and misleading marketing.
News
Sep.29 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
Elf Bar Vape Explosion and Amputation Claim Spurs Coverage Suit, U.S. Insurer MUSIC Seeks Ruling It Owes No Duty to Defend or Indemnify Distributor i5
Elf Bar Vape Explosion and Amputation Claim Spurs Coverage Suit, U.S. Insurer MUSIC Seeks Ruling It Owes No Duty to Defend or Indemnify Distributor i5
Mesa Underwriters Specialty Insurance Company has asked a federal court in Washington to declare that it has no duty to defend or indemnify vape distributor i5 Distribution in a product liability case involving an Elf Bar BC5000. The plaintiff alleges that the disposable vape caught fire and exploded in his pocket, causing severe burns and ultimately requiring an above-the-knee amputation of his left leg. MUSIC is relying on a tobacco, nicotine or nicotine replacement products exclusion and a premises limitation endorsement. The court has not ruled on the coverage dispute.
News
Sep.10
China Tobacco Plans CNY 60 Billion Investment in ICBC, Agricultural Bank as Strategic Ties Extend Beyond Equity
China Tobacco Plans CNY 60 Billion Investment in ICBC, Agricultural Bank as Strategic Ties Extend Beyond Equity
China National Tobacco Corporation and several subsidiaries plan to invest a combined CNY 60 billion ($8.7 billion) in share placements by Industrial and Commercial Bank of China and Agricultural Bank of China as strategic investors. The agreements extend beyond equity investment to corporate governance, banking services and supply-chain finance. The filings also disclose 2025 data on China Tobacco’s tax and profit contributions and industry scale.
Sep.07
South Korea Extends Vape Rules to Unmanned Stores After Bringing Synthetic Nicotine Under Tobacco Law
South Korea Extends Vape Rules to Unmanned Stores After Bringing Synthetic Nicotine Under Tobacco Law
South Korea's Ministry of Gender Equality and Family said on September 14 that it plans to designate unmanned e-cigarette stores as businesses where minors are prohibited from entering or working. Operators would be required to verify customers' ages and display notices restricting access by minors. The proposal is open for public comment through October 6. The move follows an April expansion of South Korea's statutory tobacco definition that brought products made with natural or synthetic nicotine under the Tobacco Business Act. Nicotine-free liquids and products using nicotine analogues such as 6-methylnicotine, however, remain an emerging regulatory issue.
Sep.21