Young Adults Are Hooked on High-Nicotine Vapes, Study Finds

High-Nicotine Vapes have quietly become the default for young adults who use e-cigarettes, and a major new study warns they are leaving behind a generation with a far deeper nicotine dependence than anyone expected. The research, published on October 20 in the journal Tobacco Control, traces a sharp rise in potent products over five years and links that shift directly to stronger addiction.

The work comes from researchers at the University of California San Diego Herbert Wertheim School of Public Health, who analyzed data from the Population Assessment of Tobacco and Health Study, a nationally representative survey of American tobacco and nicotine use. According to a report published by Medical Xpress, the team drew on surveys conducted in 2017, 2019, 2021 and 2022, plus a longitudinal group of more than two thousand three hundred adults who vaped in 2019 and were followed for the next three years.

The numbers are striking. By 2022, 49.2 percent of daily vapers ages 18 to 24 were using e-cigarettes containing at least 4 percent nicotine, the threshold researchers treat as high-nicotine. Among daily vapers 55 and older, only 4.5 percent chose products that strong. Overall, the odds of using a high-nicotine e-cigarette were 12 times higher for 18- to 24-year-olds than for the oldest age group.

A dependence curve that caught up with cigarettes

The timeline shows how fast the habit changed. In 2017, fewer than one in 25 people who vaped said they used products at the high-nicotine threshold. Among young daily vapers, that share climbed from 3.1 percent in 2017 to 40.1 percent by 2019, and the upward march continued through the end of the study window.

The dependence scores moved in lockstep. In 2017, 18- to 24-year-olds who exclusively vaped scored substantially lower on nicotine dependence than peers who exclusively smoked cigarettes. By 2022, their scores had risen to match the earlier smoking benchmark, meaning a young person who only vaped had become as hooked as a young cigarette smoker was five years earlier.

The stickiness shows up in quitting data too. Among people who vaped in 2019, those on high-nicotine products had 31 percent lower odds of being abstinent three years later. Overall, 40.9 percent of that 2019 group, including those who did not vape daily, had stopped by the study's end.

Marketing, authorization and the FDA question

The study raises uncomfortable questions about how young adults end up with the strongest products. Among people using the same brands, 18- to 24-year-olds were more likely than adults 25 and older to choose the high-nicotine versions. The authors note that two brands with especially large age gaps have been promoted through paid social media influencers, though the study was not designed to prove that marketing caused the choice.

Senior author John P. Pierce pointed at the regulatory bargain behind the trend. "The Food and Drug Administration's authorization of these products was based in part on the expectation that the benefits to adults who smoke would outweigh the risks of creating new nicotine dependence among young people," Pierce said. "Our findings suggest that this balance needs to be reassessed."

The team also flags the caveats. The study was observational rather than a randomized trial, so it cannot prove that high-nicotine e-cigarettes caused the rise in dependence. Many participants, especially in the early years, did not know the nicotine strength of the device they used, which the authors say would tend to make their estimates more conservative, not less.

Still, the authors argue the evidence now challenges whether these products continue to meet the public health standard required for federal marketing authorization. "We need to understand not only who is using these products, but how the nicotine content, product design and marketing environment are influencing long-term patterns of use," Pierce said. "In this study, we have documented that high-nicotine products have created a new generation of people who are dependent on nicotine."

For young users, the message is less about blame than about biology. High-Nicotine Vapes can now deliver dependence as reliably as cigarettes, and quitting gets measurably harder the stronger the product. Anyone trying to stop should know that the device making it difficult is not a character flaw but a chemistry problem, and that help exists beyond willpower alone.

GenZ NewZ has tracked the youth vaping story from multiple angles. Read how a celebrity vaping warning tried a confessional approach, how social life protects aging brains in a major new study, and how AI chatbots are learning when a medical test is unnecessary.