Raz vapes are not considered safe. They lack FDA authorization to be sold in the United States, contain nicotine concentrations high enough to cause measurable cardiovascular stress, and carry the same chemical and heavy metal risks found across disposable e-cigarettes. The FDA issued a warning letter to Raz’s parent company, Funcool Technology Co., in September 2024 for selling products without the required marketing authorization.
Raz Vapes Have No FDA Authorization
Every e-cigarette sold legally in the U.S. needs a marketing authorization order from the FDA. Raz vapes don’t have one. The FDA’s September 2024 warning letter specifically named the Raz DC25000 and TN9000 models as products being sold without this authorization, meaning they’ve never gone through the agency’s review process for evaluating whether a tobacco product is “appropriate for the protection of the public health.”
This matters because the review process is designed to assess exactly what you’re wondering: what’s in the product, how much nicotine it delivers, and whether its risks are acceptable. Without that review, there’s no independent verification of what Raz vapes contain or how they perform. You’re relying entirely on the manufacturer’s claims.
What’s Actually Inside a Raz Vape
Raz vapes use a standard e-liquid base of vegetable glycerin and propylene glycol, combined with nicotine salts, food-grade flavoring compounds, benzoic acid, and sucralose. Most Raz devices contain nicotine at 50 mg/mL (5%), which is at the high end of what’s available in the U.S. market. The DC25000 holds 16 mL of liquid, and the TN9000 holds 12 mL, meaning a single device contains a substantial total dose of nicotine spread across thousands of puffs.
The ingredient list looks straightforward on paper, but the safety concern isn’t limited to what goes into the liquid. It also involves what the liquid picks up on its way out.
Heavy Metals From the Heating Coil
Disposable vapes generate aerosol by heating liquid against a metal coil, and that coil sheds metal particles into what you inhale. Research published in ACS Central Science found that heating coils in disposable e-cigarettes release chromium and nickel into the aerosol in increasing amounts as the device is used. When researchers compared unused e-liquid to liquid that had been run through a device, the used liquid contained significantly higher concentrations of chromium, nickel, lead, copper, zinc, and antimony.
Some of these exposures are not trivial. The same research found that daily users’ exposure to nickel, antimony, and lead exceeded limits considered safe for both cancer and non-cancer health risk thresholds. One particularly concerning finding: some disposable devices contained leaded bronze alloys in their construction, a material that has no place in something designed to be inhaled from.
This research looked at disposable e-cigarettes broadly, not Raz specifically. But because Raz uses the same basic disposable design with a heated metal coil, the risk applies.
Lung Inflammation From Vaping
A study published in the Journal of Nuclear Medicine in early 2025 found that e-cigarette users had significantly more lung inflammation than both traditional cigarette smokers and non-smokers. The researchers described the inflammatory response as “unique,” meaning it’s not simply a milder version of cigarette damage but a distinct biological reaction to inhaling aerosolized e-liquid.
Sweet and fruity flavors, the kind Raz is known for (names like “Razzle Dazzle,” “Sour Mango Pineapple,” and “Tropical Storm”), introduce additional concerns. A study from the National Institutes of Health tested 51 flavored e-cigarette products and detected diacetyl in 39 of them. Diacetyl is a flavoring chemical linked to bronchiolitis obliterans, a serious and irreversible lung condition sometimes called “popcorn lung” because it was first identified in factory workers who inhaled butter flavoring. Two related chemicals, used as diacetyl substitutes, were found in nearly as many products. Fruit, candy, and cocktail flavors all contained these compounds, and the researchers specifically noted that many of the flavor profiles are the same ones used in products marketed with names appealing to younger users.
Cardiovascular Effects of High-Nicotine Vaping
At 50 mg/mL, Raz vapes deliver nicotine at a concentration designed to mimic the rapid hit of a cigarette. That concentration has measurable effects on your heart. A systematic review and meta-analysis found that acute e-cigarette use raised heart rate by an average of about 11 beats per minute, systolic blood pressure by roughly 13 points, and diastolic blood pressure by about 8 points compared to non-use.
These are short-term spikes, but they repeat with every vaping session. For someone who vapes throughout the day, this means the cardiovascular system spends hours in an elevated state. Over time, repeated blood pressure spikes contribute to arterial stiffness and increased cardiovascular strain. If you have an existing heart condition or high blood pressure, high-nicotine vaping adds a real and ongoing stress to your system.
Nicotine Dependence Risk
The 50 mg/mL nicotine concentration in Raz vapes isn’t just a cardiovascular concern. It’s also a dependence concern. Nicotine at this concentration, delivered as nicotine salts (which feel smoother and less harsh than freebase nicotine), makes it easy to inhale large doses without the throat irritation that might otherwise signal you to stop. A single Raz DC25000 contains 16 mL of liquid at 50 mg/mL, totaling 800 mg of nicotine in one device. For context, a single cigarette delivers roughly 1 to 2 mg of absorbed nicotine.
The combination of high concentration, smooth delivery, and a device designed to last thousands of puffs creates strong conditions for developing or deepening nicotine dependence, particularly for younger users or anyone who hasn’t previously used nicotine products.
Disposal and Environmental Risks
Raz vapes, like all disposable e-cigarettes, contain lithium-ion batteries that pose risks after the device is used up. When these batteries are punctured or crushed in normal waste processing, they can reach temperatures of nearly 500°C and expel gas rapidly. Research from a nail penetration test on disposable e-cigarette batteries recorded an exterior temperature of 270°C, hot enough to ignite surrounding waste. Throwing disposable vapes in household trash contributes to fire risk at waste facilities, and the lithium and other battery chemicals can leach into the environment from landfills.