Their Experiment.
Your Lungs. Your Brain.

Caution Sign Vape's latest experiments

Figure inhaling aerosol


Do vapes, JUULs®, Puff bars, and other e-cigs produce water vapor or aerosol?
Males/Females Ages 13-25
Vaping device, e-juice

Conclusion: Vapes, JUULs®, Puff bars, and other e-cigarettes heat e-juice/pods creating an aerosol, not water vapor. An aerosol is a mixture of liquid particles suspended in a gas and contains many toxic chemicals – some of which are the same as those found in cigarettes and cigars. The aerosol produced by vaping or juuling is inhaled deep into the lungs. Studies have found that inhaling these chemicals can lead to asthma, inflammation, and even make it permanently harder to breathe. The standard for what we breathe should be clean air, free of toxic secondhand smoke/aerosol.

Chemicals found in aerosol:

*Additional chemicals can be found in aerosol than those listed below
  • Propylene glycol
  • Glycerol
  • Lead
  • Tin
  • Nickel
  • Nicotine
  • Acetone
  • Formaldehyde
  • Acetaldehyde
  • Propanal
  • Diacetin
  • Triacitine
Figure surrounded by fruit


Do fruit flavored vapes contain harmful chemicals?
Males/Females Ages 13-25
E-cig, multi-flavored juices

Conclusion: Don’t be fooled, fruit flavorings only mask the chemicals in vapes, such as diacetyl and nicotine. Research has concluded that fruit flavored products play a major role in drawing youth and young adults to tobacco products, as they are often mischaracterized as less harmful than non-flavored tobacco products. Additionally, research has found students who vape in high school are 6x more likely to smoke cigarettes as adults. Don’t get caught in the flavor trap.

Hammer hitting figure on the head


Do vapes and JUULs® contain nicotine?
Males/Females Ages 13-25
Vaping device, fruity and non-fruity flavors

Conclusion: Every JUULpod™ contains the same amount of nicotine as a pack of 20 cigarettes. A 2018 Truth Initiative study found that 63% of JUUL® users did not know this product contains nicotine. E-juice manufacturers are not currently required to report the ingredients used in their products. This means vape users do not know what ingredients or how much of a certain ingredient is used in their vape juice, pod, or cartridge. While some may think they are not vaping nicotine, a 2015 study found that nearly all (99%) of e-cigarettes sold in the U.S. contained nicotine. Additionally, over half of the thousands of e-juices available may have inaccurately labeled their nicotine content – some reporting zero nicotine when their products did, in fact, contain nicotine.

Do you really need to worry about nicotine?

Your brain continues to develop until you are about 26 years old. Research has shown nicotine impacts teens and young adults – and not in a good way.

  • Nicotine impairs brain development, decreasing the ability to focus and pay attention.
  • Nicotine is an extremely addictive substance, similar to heroin, cocaine, and alcohol.
  • Nicotine is derived from tobacco. When tobacco products, such as cigarettes, cigars, and vapes are used, nicotine is quickly absorbed into the bloodstream.
  • Within 10 seconds of entering the body, the nicotine reaches the brain.
  • A nicotine “buzz” fades quickly though, and leaves the user feeling tired, down, and wanting the “buzz” again.
  • This feeling is what makes someone light up the next cigarette, grab for a hit of their JUUL®, or take a quick puff on their vape. This up and down cycle repeats over and over, becoming a disease known as addiction. Addiction keeps people using these products even when they want to quit – they lose control.

Why we're here

We don’t think humans should be used as test subjects.
Vape is a product with red flags, unanswered questions, and overstated myths. In 10 or 20 years, we’ll know the results of this Vape experiment, but as the subject you pay the price. We think that stinks.
We’re not here to lecture, mock or shame.
This isn't about putting out propaganda or being judgemental. We just want to give you information that could be important to you, as well as your friends and family. After that, it's up to you whether you want to be part of The Vape Experiment or not.
We think the public should be informed.
Vape can include a wide variety of products. We want to provide as much information about the range of products available, and what we know so far. This includes products like Juul®, Suorin, Phix, Novo Smok, Tank systems, and all other electronic smoking devices. For more resources, please visit MDH Vape Help.
We're here to provide resources.
If you want to spread this message to your peers, downloadable and shareable PDFs are available below:

Get help

We want to help you quit all tobacco products.
If you’re looking for help to quit vaping or juuling, you can text “READY” to 887-09 to enroll in Truth’s ‘This is Quitting’ program. ‘This is Quitting’ is a free mobile program designed to help young people quit vaping with tips, strategies, and support throughout the quitting process.

You can also visit to learn more about the free and confidential Maryland Tobacco Quitline which has a text service option in addition to phone and web programs. The Quitline provides services by highly trained Quit Coaches® to Marylanders 13 years and older, available 24 hours a day, seven days a week.