Using Mehrabian and Russell's stimulus (S) - organism (O) - response (R) model, this study examined consumer motivations to consume user-generated content (UGC) and sponsored video content on social media during the COVID-19 pandemic. The study also investigated the impact of information consumption on purchasing behavior as the main constructs. The study used the consumption patterns of active and passive social media users to further understand the level of short-form video consumption related to purchasing behavior. Grounded upon the SOR theory, this study measured utilitarian and hedonic motivations as stimuli with user-generated content and sponsored content as organism and purchasing behavior as response. A quantitative snowball survey (n = 289) was used to collect data from TikTok users to examine the relationships between motivations, types of content, and purchasing behavior. Statistical analyses including descriptive statistics, reliability tests, factor analysis, and multiple regression analyses was used to profile the sample and to test hypothesized relationships. All hypotheses were supported and found to have significant relationships between the independent and dependent variables. This study is useful to those in the fields of information sharing, crisis management, consumer behavior, and retail to develop communication strategies and understand and adapt to consumption habits and …