By the early 2020s, public health researchers had something genuinely worth celebrating. Teen cigarette smoking, a problem that had defined American public health since the 1950s, had been driven to historic lows. In 1997, 36% of high school students reported current cigarette use. By 2021, that figure had fallen to under 4%, a dramatic drop driven by decades of price increases, marketing restrictions, indoor smoking bans, public awareness campaigns and a cultural shift that had made smoking, for the first time in a century, genuinely unfashionable among young people.
The tobacco industry watched these numbers and launched something new.
E-cigarettes arrived in the U.S. market around 2007. Nicotine pouches followed in 2014. By 2019, youth e-cigarette use among high school students had surged to over 25%, erasing two decades of progress in a few years and prompting the U.S. Surgeon General to declare a youth vaping epidemic. The products were different from cigarettes.
The delivery mechanisms, the flavors, the marketing channels and the social contexts were all new. But the pharmacology was not. Nicotine, the same highly addictive substance that had driven the cigarette epidemic, was now reaching a population of young people who had largely never smoked.
This article explains what these products are, why they spread so rapidly among youth, what the health risks are—particularly for developing brains—and what parents and caregivers need to know.
What These Products Are
The category “tobacco-free nicotine products” covers several distinct types of products, all of which provide nicotine without combustion and, in some cases, without tobacco leaf itself.
E-Cigarettes (Vapes)
E-cigarettes, also called vapes, are battery-powered devices that heat a liquid containing nicotine, flavorings and carrier chemicals, typically propylene glycol and vegetable glycerin, into an aerosol that the user inhales.
They come in:
- Disposable single-use form
- Refillable systems
Flavors are central to their appeal and their market design.
Common flavor categories include:
- Candy
- Fruit
- Mint
- Dessert flavors
In recent surveys, 89-90% of youth vapers reported they use flavored products.
Nicotine Pouches
Nicotine pouches, marketed under brands including:
- Zyn
- On!
- Velo
- Rogue
These are small pouches placed between the lip and gum that deliver nicotine through the soft tissue of the mouth. They contain no tobacco leaf and produce no smoke, vapor or spit, which makes them nearly undetectable in classrooms, offices and other settings where traditional tobacco use would be immediately obvious.
Zyn, acquired by Philip Morris International in 2022, has become the dominant brand. Sales of nicotine pouches in the U.S. grew from roughly 126 million units in the second half of 2019 to over 808 million units in the first quarter of 2022, more than six times higher in under three years.
Regulatory Landscape
Both product categories have received regulatory attention. In January 2025, the FDA granted marketing authorization to Zyn, making it the first nicotine pouch brand to receive approval. The authorization covers 20 products across 10 flavors and two nicotine strengths.
E-cigarettes remain part of a contested regulatory landscape. The FDA has authorized some products while taking enforcement action against many unauthorized ones, particularly flavored disposable vapes that are popular with youth.
How They Reached Young People So Quickly
The speed with which e-cigarettes penetrated the youth market was not accidental. It followed a playbook that public health researchers recognized.
Marketing Strategy
The strategy included:
- Introducing a new delivery mechanism. One that sidesteps existing regulations.
- Leading with flavors and aesthetics. Elements that appeal to young people.
- Establishing brand presence through social media channels. Channels that bypass traditional advertising restrictions.
- Positioning the product as modern and cool. Making it appear harmless before regulators have had time to respond.
JUUL’s Rise
JUUL, the brand that initially dominated the youth vaping market, reached its peak through a combination of design, nicotine formulation and social media marketing. Its sleek USB-drive design made the device look familiar and discreet, while high-nicotine salt formulations reduced harshness. A strong social media presence helped make vaping a visible part of youth culture by the mid-2010s.
By the time regulatory action began to catch up, the habit was established in a generation of teenagers. JUUL has since receded under regulatory and legal pressure. Disposable vapes from brands such as Elf Bar, Breeze and Mr. Fog filled the gap, most of them unauthorized by the FDA and largely manufactured overseas.
“Zynfluencers”
Nicotine pouches have followed a similar trajectory through “zynfluencers”, social media content creators on TikTok and other platforms who document their pouch use in contexts associated with:
- Fitness
- Gaming
- Productivity
- Daily life
Analysis of TikTok content tagged with Zyn-related hashtags found that 63% of posts came from users under 25.
The product’s invisibility, no smoke, no vapor and no odor, makes it particularly easy to use in environments where detection would otherwise deter use, including schools.
Legal Concerns
The City of Baltimore filed suit against Philip Morris and Swedish Match in 2025, alleging that the companies intentionally targeted youth through marketing to create a new generation of nicotine users as cigarette sales declined. The lawsuit claims this strategy was intended to replace aging and dying customers with younger ones.
Why Nicotine Is Particularly Harmful to Developing Brains
The health risks of nicotine products for adults are real, but many public health experts view them through a harm-reduction lens. For example, a cigarette smoker who switches to a nicotine pouch or e-cigarette reduces exposure to combustion byproducts and the carcinogens most responsible for tobacco-related cancer and lung disease.
The FDA’s authorization of Zyn reflected this reasoning, that the product may be less harmful than cigarettes for adults who already use nicotine.
For young people who have never smoked, that calculus does not apply. There is no reduction in harm from a baseline of zero tobacco use. There is only the introduction of nicotine into a developing brain, with consequences that research has increasingly documented.
Brain Development
The brain continues developing through approximately age 25. The prefrontal cortex, the region governing attention, impulse control, decision-making and memory consolidation, is among the last structures to mature.
Nicotine acts on nicotinic acetylcholine receptors throughout the developing brain, triggering dopamine release and initiating the same reward-learning process that underlies addiction in adults.
Addiction Risk
In adolescent brains, this process is stronger and longer-lasting.
Early nicotine exposure alters dopamine receptor development and increases vulnerability to addiction. According to human studies, it roughly doubles the risk of developing substance use disorders later in life.
Cognitive and Mental Health Effects
Research has linked nicotine exposure in youth to:
- Measurable deficits in attention
- Learning difficulties
- Memory problems
- Increased rates of anxiety and depression
- Heightened susceptibility to other addictive substances
Adolescents can develop nicotine dependence faster than adults and with less exposure. Research has found that dependence can develop after as few as four cigarettes in some teenagers.
The high-concentration nicotine salt formulations in many e-cigarettes and the 3 to 6-milligram doses in nicotine pouches provide nicotine levels comparable to or exceeding a cigarette, in a format with no smoke, no smell and no obvious sign of use.
The Current Landscape: Progress and Ongoing Concerns
While youth vaping surged rapidly in the late 2010s, more recent data shows signs of progress. At the same time, new nicotine products are creating emerging concerns for public health and youth prevention efforts.
Decline in Youth Vaping
Youth e-cigarette use has declined from its 2019 peak of 20% of high school students to 5.9% in 2024, the lowest level in a decade and roughly one-third of its peak.
That represents approximately 500,000 fewer youth reporting current use compared to 2023 alone. The decline has been driven in part by:
FDA enforcement actions against unauthorized products. Enforcement efforts targeting illegal or unapproved vaping devices.
Public education campaigns. National and local campaigns warning young people about the risks of vaping.
Continued Nicotine Pouch Use
Youth nicotine pouch use held steady at approximately 1.8% of middle and high school students in 2024. This represents around 480,000 young people and 22% of those users reported daily use.
Pouch use is particularly concerning because of its invisibility and because the products are often misidentified by young people as harmless or as nicotine replacement products used by adults to quit smoking.
They are not cessation products. Instead, they are delivery systems for a highly addictive substance in flavors specifically designed to be appealing.
Young Adult Trends
Young adult use, ages 18 to 24, continues to rise. In 2023, about one in six adults aged 21 to 24 used e-cigarettes. This is up from one in ten in 2019. The generation that was adolescents during the vaping epidemic is now aging into young adulthood carrying nicotine dependencies acquired in middle and high school.
What Parents and Caregivers Can Do
Detection is harder than it was with cigarettes. Many modern nicotine products are designed to be discreet, producing little to no odor and leaving few visible signs of use. They often produce no smell on clothing, no visible device and no obvious social behavior change. Nicotine pouches in particular can be used without any external sign.
Possible Warning Signs
Parents are more likely to notice behavioral signals such as:
- Increased irritability when unable to use a device or pouch
- Concentration difficulties
- Sleep disruption
- Mood dysregulation
These symptoms are consistent with nicotine dependence and withdrawal.
Talking With Teens
Conversations that lead with information rather than accusation tend to be more effective.
Key facts worth communicating:
- These products are not harmless because they don’t involve smoke. The absence of smoke does not eliminate the risks associated with nicotine.
- The “tobacco-free” label on pouches does not mean nicotine-free. Nicotine pouches still deliver nicotine, which is highly addictive.
- Flavors like mango, mint and cinnamon are design choices. These flavors are intended to make nicotine products more appealing to people who might not otherwise use nicotine.
- The brain’s vulnerability to addiction is highest during adolescence. Developing brains are more susceptible to nicotine’s addictive effects.
Finding Help for Substance Use Concerns
If a young person is already dependent on nicotine products, cessation support is available and can help. Options include nicotine replacement therapies such as patches, gum or lozenges as well as behavioral counseling adapted for adolescents. Dependence on a nicotine pouch or vape is clinically the same condition as dependence on cigarettes and warrants the same level of support.
For families navigating questions about substance use, whether nicotine, alcohol or other substances, NationalRehabHotline.org is a free, confidential resource available 24-7. We can connect families and individuals with appropriate assessment and treatment resources.
