FDA: No additional benefit of fruity vaping flavors for smoking cessation

A scientific note A report recently published by the US Food and Drug Administration (FDA) sheds important light on the debate surrounding the flavorings of vaping products.[1]. In connection with the authorization to market several flavored e-cigarettes from the Glas brand, the federal agency indicated that the fruity and menthol flavors studied did not demonstrate any additional benefit compared to tobacco-flavored products in promoting smoking cessation or reducing cigarette consumption. This conclusion challenges one of the main arguments put forward for several years by vaping product manufacturers and the tobacco industry, namely that flavors are essential to enabling smokers to permanently abandon combustible cigarettes.

The FDA's analysis is based on a scientific review of applications submitted by Glas Inc. for five nicotine-containing e-cigarette cartridges, including mango, blueberry, and menthol flavors. The agency relied in particular on a three-month randomized controlled trial involving adult smokers who consumed more than ten cigarettes per day. Researchers compared rates of complete versus partial tobacco substitution between users of flavored products and those using a tobacco-flavored version. The FDA also assessed the risks of youth appeal, toxicological data, the risks of addiction, and the effectiveness of an age verification system integrated into the devices.

Flavors do not provide any proven additional benefit for quitting smoking

One of the key findings of the report is that mango, blueberry, and menthol-flavored products did not show statistically superior results compared to tobacco-flavored products in terms of smoking cessation or significant reduction in cigarette consumption. The FDA explicitly notes that the randomized controlled trial provided by Glas found no significant difference between the various flavors evaluated in promoting substitution from combustible tobacco.

This conclusion is particularly noteworthy given that e-cigarette manufacturers and the tobacco industry regularly claim that flavors are essential for helping smokers quit cigarettes permanently. According to this argument, banning non-tobacco flavors would lead a significant number of users to relapse. However, the data reviewed by the FDA do not show that fruity or menthol flavors are more effective at helping people quit smoking than tobacco-flavored products.

The study does show that users of the different products achieved significant results in reducing or quitting smoking. After three months, complete cigarette substitution rates ranged from 12 to 18 cigarettes per 100,000, depending on the flavors tested, while nearly half of the participants had reduced their daily cigarette consumption by 50 to 99 cigarettes per 100,000. However, these benefits were observed for all products studied, including the tobacco-flavored version. The FDA specifies that the fruit and menthol flavors did not demonstrate greater effectiveness than the tobacco-flavored products in promoting smoking cessation or reduction.

Authorization based on an access control device, not on aromas

The FDA's decision to authorize these products is therefore not based on demonstrating a particular benefit of the flavors for adult smokers. It relies primarily on a technological access control system considered likely to significantly limit use by minors.

Glas products require identity and age verification via a mobile app linked to an official ID before they can be used. According to data reviewed by the FDA, none of the 43 minors who participated in the trials were able to activate the device, while 83 to 96 adults successfully completed the verification process.

The agency considers this locking system to be the central element that enabled the authorization of flavored products. Without this system, manufacturers would have had to demonstrate that fruity and menthol flavors provided an additional benefit to adult smokers compared to tobacco-flavored products. In its scientific summary, the agency even specifies that fruity products "did not need to demonstrate an additional benefit for adults" compared to tobacco-flavored products, since the risk of use among young people was deemed sufficiently low.

An additional argument in the debate on banning flavorings

For several years, opponents of flavor restrictions have cited the risk of a massive return to smoking among adult e-cigarette users. This argument is regularly used in regulatory debates in both the United States and Europe to oppose bans on fruity, sweet, or menthol flavors.

The FDA's findings also provide important information regarding the protection of young people. The agency reiterates that flavored products pose a particular risk to this population, noting that 88% of American teenagers who used an e-cigarette in the past 30 days consumed a flavored product. Fruit flavors remain the most popular among young users.

The FDA also emphasizes that traditional restrictions on advertising, promotion, or sales are insufficient on their own to adequately reduce the risk of young people being introduced to flavored products. According to the agency, only particularly stringent access control mechanisms, such as the age verification system integrated into Glas products, can potentially offset the significant appeal these products hold for minors.

The agency acknowledges, however, that these results are based on tests conducted in a controlled environment and on a limited number of underage participants, which does not allow for the complete exclusion of misuse in real-world conditions.

In this context, the scientific analysis conducted by the FDA suggests that maintaining flavored e-liquids cannot be justified by the existence of a proven benefit superior to tobacco flavors in terms of smoking cessation. This statement thus provides further evidence in the debate surrounding the regulation of vaping flavors: their appeal to young people is well-documented, while their specific contribution to smoking cessation compared to tobacco flavors remains, to date, unproven.

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[1] Matthew Perrone, FDA's e-cigarette authorization: Fruity vapes not significantly better than tobacco ones, ABC News, published June 11, 2026, accessed the same day