The COVID-19 pandemic exposed tensions between science, politics, and public trust in Brazil. Amid the rise of far-right populism, denialist narratives, and disinformation, scientific evidence became entangled in ideological disputes. Drawing on studies of media coverage, social media dynamics, and public perception of science, this commentary argues that traditional deficit-model approaches are insufficient in polarized contexts. Rebuilding trust requires rethinking science communication as a democratic and culturally embedded practice, grounded in dialogue, empathy, and participation. Strengthening institutional communication, engaging diverse actors, and recognizing multiple knowledge systems are essential to restoring public relevance and legitimacy of science.