Psychological theories help explain why authenticity influences consumer behavior. Trust acts as a mediator between perceived authenticity and purchase intentions. When consumers view a company as genuine, they are more likely to engage, recommend, and remain loyal. Authenticity signals reliability and reduces uncertainty in decision-making. Transparency, honesty, and consistency serve as cues that reinforce these perceptions, while misalignment or misleading actions can quickly erode trust. Understanding these psychological mechanisms allows organizations to structure communications and operations that foster genuine connections with their audience.