Unknown components
Still, doctors and researchers are concerned about the ingredients in e-cigarettes and how little the public knows about the risks of vaping.
In Juul’s terms and conditions, posted on its website, it says, “We encourage consumers to do their own research regarding vapor products and what is right for them.” Many ingredients in e-cigarette products, however, are protected as trade secrets.
Since at least 2013, the flavor industry has expressed concern about the use of flavoring chemicals in vaping products.
The vast majority of the chemicals have been tested only by ingesting them in small quantities because they’re encountered in foods. For most of these chemicals, there have been no tests to determine whether it is safe to inhale them, as happens daily by millions when they use e-cigarettes.
“Many of the ingredients of vaping products, including flavoring substances, have not been tested for … the exposure one would get from using a vaping device,” said John Hallagan, a senior adviser to the Flavor and Extract Manufacturers Association. The group has sent cease-and-desist letters to e-cigarette companies in previous years for using the food safety certification of the flavor industry to imply that the chemicals are also safe in e-cigarettes.
Some flavor chemicals are thought to be harmful when inhaled in high doses. Research suggests that cinnamaldehyde, the main component of many cinnamon flavors, may impair lung function when inhaled. Sven-Eric Jordt, PhD, a professor at Duke University, Durham, N.C., says he presented evidence of its dangers at an FDA meeting in 2015 — and its relative abundance in many e-cigarette vaping liquids. In response, one major e-cigarette liquid seller, Tasty Vapor, voluntarily took its cinnamon-flavored liquid off the shelves.
In 2017, when Dr. Gottlieb delayed the FDA application deadline, the product was back. A company email to its customers put it this way: “Two years ago, Tasty Vapor allowed itself to be intimidated by scaremongering tactics. … We lost a lot of sales as well as a good number of long-time customers. We no long see reason to disappoint our customers hostage for these shady tactics.”
At the time of publication, Tasty Vapor’s owner did not reply to a request for comment.
Dr. Jordt said he is frustrated by the delays in the regulatory approval process.
“As a parent, I would say that the government has not acted on this,” he said. “You’re basically left to act alone with your addicted kid. It’s kind of terrifying that this was allowed to happen. The industry needs to be held to account.”
Kaiser Health News correspondents Cara Anthony, Markian Hawryluk, and Lauren Weber, as well as reporter Victoria Knight contributed to this report. This story first published on California Healthline, a service of the California Health Care Foundation.
Kaiser Health News is a national health policy news service. It is an editorially independent program of the Henry J. Kaiser Family Foundation which is not affiliated with Kaiser Permanente.