The reputational risk was starting to flow in the opposite direction
E liquids come in a few different forms, you have those that are premixed with nicotine and those that are nicotine free, within nicotine free e juice you also have shortfills, these vape liquids are filled short so that nicotine boosters can be added
In other words, smoking is often used as a coping mechanism against stress
doi:1177/1524839919888652 Keller-Hamilton B, Ferketich AK, Berman M, Conrad E, Roberts ME
So it turns out that adding specific flavors to nicotine products enhances the nicotines reinforcing capacity. Perhaps in part for these reasons, while some individuals say e-cigarettes helped them quit smoking, Leone says researchers have not been able to reproduce those successes