Most major vape brands now offer nicotine-free versions of their products, labeled as 0mg or 0% nicotine. These devices work exactly like regular vapes, heating a liquid base with flavorings to produce vapor, but without any nicotine in the mix. You can find zero-nicotine options across three main product categories: disposable vapes, refillable pod systems, and bottled e-liquids.
Types of Nicotine-Free Vapes
Zero-nicotine vapes come in the same form factors as their nicotine-containing counterparts. Disposable vapes are the simplest option, pre-filled and ready to use out of the box. Many popular disposable brands sell 0mg versions alongside their nicotine lines. Refillable pod systems and pen-style kits give you more control, since you can fill them with any 0mg e-liquid you choose. Bottled e-liquids (sometimes called vape juice or e-juice) are widely available in 0mg nicotine across virtually every flavor category: fruit, menthol, dessert, tobacco, beverage, and more.
There’s also a smaller category of “wellness” vape devices marketed as vitamin or supplement delivery systems. Products like VitaCig claim to contain vitamins A, B12, C, and E, along with essential oils and herbal extracts. Others, like NutroVape Sleep, contain melatonin, chamomile, and passionflower blends. These are nicotine-free by design, but there is no scientific evidence that inhaling vitamins is safe or effective. Pulmonary researchers have warned that delivering supplements through inhalation could cause lung damage.
What’s Actually in 0mg Vape Liquid
Nicotine-free e-liquid contains two base ingredients: propylene glycol (PG) and vegetable glycerine (VG). These are the same carrier liquids used in nicotine-containing products. Propylene glycol is thinner and carries flavor more effectively, while vegetable glycerine is thicker and produces denser vapor clouds. The two are blended at different ratios depending on the product, with common mixes being 30/70, 50/50, or 70/30 PG to VG. On top of this base, manufacturers add food-grade flavoring compounds.
Those flavoring compounds are where things get more complicated. A survey of 51 popular e-cigarette flavors found that 76% contained diacetyl and 45% contained a related chemical called acetyl propionyl. A larger analysis of 146 e-liquids detected diacetyl in 46% of samples. Diacetyl has a well-established link to serious lung disease when inhaled in occupational settings. These flavoring chemicals are present regardless of whether the liquid contains nicotine, so choosing a 0mg product doesn’t eliminate exposure to them. Some manufacturers now advertise “diacetyl-free” formulations, but independent testing of individual products remains limited.
How to Identify a Nicotine-Free Product
The nicotine content is printed on the packaging and typically listed as either “0mg” or “0% nicotine.” For disposable vapes, check the label or product listing before buying, since many brands package their nicotine and nicotine-free versions in nearly identical designs. For refillable systems, you simply choose a 0mg e-liquid. If you’re buying online, most retailers let you filter by nicotine strength, and 0mg is a standard option across reputable vape juice brands.
Be cautious with products that don’t clearly state their nicotine content. Legitimate manufacturers always label the concentration. If a product is vague about its ingredients, that’s a reason to avoid it.
Nicotine-Free Vaping Still Affects Your Body
Removing nicotine from the equation eliminates the addictive stimulant, but the vapor itself is not inert. Lab studies on human lung cells found that exposure to nicotine-free vapor with tobacco flavoring triggered inflammatory responses and impaired the cells’ ability to heal wounds. Menthol-flavored vapor, also nicotine-free, disrupted the tight junctions between airway lining cells, which are critical for keeping the lungs’ protective barrier intact. A month of nicotine-free vapor exposure in cell studies showed disrupted tissue remodeling, the process your lungs rely on to repair themselves.
Animal studies have revealed behavioral effects as well. Mice exposed to nicotine-free vapor showed reduced physical activity lasting 60 to 90 minutes after exposure, along with anxiety-like behavior on two separate behavioral tests. Researchers confirmed these effects were not caused by nicotine receptor activation, meaning the base liquid or flavorings themselves were responsible through a mechanism that hasn’t been fully identified yet.
Using 0mg Vapes to Quit Smoking
Some people turn to nicotine-free vapes specifically to manage the hand-to-mouth habit of smoking while avoiding continued nicotine dependence. A double-blind randomized controlled trial followed smokers for one year and found that participants using nicotine-free e-cigarettes experienced a greater reduction in daily cigarette consumption compared to those using nicotine-containing e-cigarettes. The researchers noted that the nicotine-free group showed sustained reductions over time without increasing their nicotine dependence level.
The study’s authors suggested that nicotine-free e-cigarettes may help smokers manage the behavioral and social aspects of tobacco dependence, which are often the hardest parts to give up. Holding something, inhaling, and exhaling visible vapor mimics the ritual of smoking closely enough to satisfy the habitual cravings that persist long after nicotine withdrawal fades. For people already on the tail end of quitting who have weaned down their nicotine intake, a 0mg vape can serve as a transitional tool.
The Bottom Line on “Safe”
Nicotine-free vapes eliminate the most addictive component of traditional vaping, and they won’t cause nicotine dependence. But “nicotine-free” does not mean “harmless.” The base liquids, flavoring chemicals, and the act of inhaling heated aerosol all carry their own risks to lung tissue. If you’re choosing a 0mg vape to step down from nicotine, the evidence supports that approach as a cessation strategy. If you’ve never smoked or vaped and are considering a nicotine-free product because it seems risk-free, the lung and behavioral research suggests otherwise.