This study examines the impact of online reviews on brand trust within the contemporary digital environment, emphasizing the role of electronic word-of-mouth (eWOM) in shaping consumer perceptions. Based on an integrative theoretical framework and empirical literature, the research identifies key determinants of trust formation, including review valence, credibility, volume, and platform characteristics, mediated by cognitive and affective mechanisms. The findings reveal that online reviews exert a significant, yet non-linear and asymmetric influence on brand trust, highlighting the importance of credibility and the risks associated with manipulated or algorithmically curated content.