Conclusions
PML
ABUSE, RECRUITMENT, PML
Instagram posts that use negative imagery may discourage young adults from nicotine vaporizer use. Negative imagery in public education campaigns and on vaporizer product warning labels may better convey harms than text. Young adult Instagram users may be promising partners for communicating messages about health risks or the harms of consumer products. In 2016, the FDA adopted a policy requiring the advertisements of nicotine vaporizers in media (eg, social media) to include a warning statement about the addictiveness of nicotine [This research was supported in part by (NIH/ 5T32CA113710-15) and by the National Institute on Drug Abuse (K01DA055073).Authors' Contributions: KDL served as the principal investigator of the funded project (NIH/R01 CA141661). PML and EAV developed the study methodology, supervised the study, study recruitment, and reviewed and edited the iterations of the manuscript. JG developed the study methodology, reviewed, and edited the iterations of the manuscript. KDL assisted in performing statistical analyses, led the writing and response to reviews, and revised all versions of the manuscripts.Conflicts of Interest: None declared.Participant characteristics by experimental condition.