For the first time, researchers analysed the saliva and urine of long-term e-cigarette and NRT users, as well as smokers, and compared body-level exposure to key chemicals.** Ex-smokers who switched to e-cigarettes or NRT had significantly lower levels of toxic chemicals and carcinogens*** in their body compared to people who continued to smoke tobacco cigarettes
Participants Eligible adults (aged 18 years) had to report smoking at least 100 cigarettes in their lifetime and 10 cigarettes per day in the previous month, with exhaled CO 8 ppm, to verify smoking status
Sarah Jackson, a behavioral scientist at UCL and lead author of the study, told Filter that the increase coincided with the introduction of new disposable vapes, many which contain e-liquids with nicotine strengths at the upper end of the legal limit. Studies suggest e-cigarettes containing higher nicotine strengths may be more effective for helping people to stop smoking. These products tend to use nicotine salts e-liquids, she elaborated, which allow higher strengths to be inhaled without the harshness people may experience with higher-strength freebase nicotine e-liquids
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