cigarettes under a microscope Tobacco smoke particles on filter fibre, SEM - Stock Image - C036/9807 Exploring Cigarettes Under the Microscope

A 2014 report by the World Health Organization, for example, stated that for some brands of e-cigarettes, the level of cancer-causing agents in the aerosol such as formaldehyde and other toxicants like acrolein have been found to be as high as in the smoke produced by some cigarettes. A recently released study by the California-based Center for Environmental Health found high levels of the cancer-causing chemicals acetaldehyde and formaldehyde in vaping products made by 21 out of 24 companies whose products were tested

Its worth noting that some brands even go beyond 9mg (offering 12mg, 15mg, or more in a pouch), categorizing those as extra-strong. Those ultra-high doses are obviously for a niche group of users and come with even more risk of side effects

Time will tell if this works well

[Google Scholar] 28.Chang AB, Wilson SJ, Masters IB, et al