Brandon Cheng

Corresponding Author Jack Chung National Centre for Youth Substance Use Research, Faculty of Health and Behavioural Sciences, The University of Queensland, St Lucia, Australia School of Psychology, Faculty of Health and Behavioural Sciences, The University of Queensland, St Lucia, Australia Correspondence Jack Chung, National Centre for Youth Substance Use Research, Faculty of Health and Behavioural Sciences, The University of Queensland, St Lucia, QLD 4067, Australia.

http://orcid.org/0000-0002-3939-9499Tianze Sun1,2,3, http://orcid.org/0000-0003-1595-6307Carmen C.W. Lim1,2,3, Jack Chung1,2, Brandon Cheng1,2, Lily Davidson2, Calvert Tisdale2, Janni Leung1,2,4, http://orcid.org/0000-0002-6651-8035Coral E Gartner3, Jason Connor1,5, Wayne D Hall1, Gary C.K. Chan1,3 1 National Centre for Youth Substance Use Research, The University of Queensland, Saint Lucia, Queensland, Australia 2 School of Psychology, The University of Queensland, Saint Lucia, Queensland,...

Promotion/advertisement Promotion/Advertisement themes were typically observed in content created by commercial accounts featuring licit substances. Although the substances depicted are classified as legal, this does not mean that there are no risks associated with regular use.