Half of Young Daily Vapers Now Reach for High-Nicotine Vaping

Young adults are not just vaping more. They are vaping stronger. High-nicotine vaping climbed sharply among young adults over a five-year span, according to research published October 20 in the journal Tobacco Control, and the people reaching for the strongest products also reported deeper dependence and habits that were harder to break. The work comes from the Herbert Wertheim School of Public Health and Human Longevity Science at the University of California San Diego, drawing on a nationally representative American study that tracks tobacco and nicotine habits. For anyone wondering why vaping has proved so sticky for young adults, the study offers an unusually direct answer: the products themselves got stronger, and high-nicotine vaping is proving hard to put down.

The strongest products skew young

The headline numbers leave little room for doubt. By the final survey year, 49.2 percent of young adults who vaped every day were using e-cigarettes containing at least 4 percent nicotine, the study's cutoff for a high-nicotine product. Among daily vapers aged 55 and older, just 4.5 percent were reaching for anything that strong. In relative terms, a vaper between 18 and 24 was twelve times as likely to be using a high-nicotine product as a vaper in the oldest group. The rise of high-nicotine vaping, in other words, is overwhelmingly a young person's phenomenon.

That gap is not a story about young people shopping on different shelves. The researchers found that young adults are disproportionately choosing the strongest options within the same brands older adults use, and that the climb was steep across the study window rather than gradual. Strength also tracks with stickiness: high-nicotine vaping came with greater reported dependence and more persistent use across the years covered. The senior author, John P. Pierce, a professor at the school, aimed the findings at the original regulatory calculation. The Food and Drug Administration authorized many of these products partly on the expectation that the payoff for adults who smoke would outweigh the danger of creating fresh dependence among the young. Pierce said the new numbers suggest that trade-off is due for another look.

How the study was built

The analysis rests on the Population Assessment of Tobacco and Health, a national study that surveys tobacco and nicotine habits across the United States. The team used its survey waves from 2017, 2019, 2021 and 2022, then added a longitudinal thread: 2,356 adults who were vaping in 2019 and whose habits were followed forward through later waves. Watching the same people over time matters, because it separates a genuine shift in behavior from the noise of comparing different strangers in each survey round. Few national datasets track high-nicotine vaping this way across so many years, which is also what lets the researchers talk about persistence with any confidence: they could see who was still vaping years later, and what strength they had started on.

The researchers are careful about what the data can and cannot prove. They describe the connection between high-nicotine vaping and dependence as an association rather than a settled cause, and the figures come from survey responses, which reflect what people reported about their own use. But the pattern held in the longitudinal follow-up, where the same individuals were observed over years instead of a single snapshot. Persistence here is literal: the people using high-nicotine products were the ones more likely to still be vaping when the later surveys came around.

The authors stop short of writing policy. Their stated point is narrower: the balance the FDA struck when it authorized these products assumed the main winners would be adults trying to move off cigarettes, and that the risk to the young would stay contained. This study suggests both assumptions are leaking. Young adults are not picking obscure fringe brands. They are picking the strongest version of the mainstream ones, and the dependence follows the strength. For regulators deciding what these products are for and who they are really serving, that is the part of the picture the new data fills in.