This critical literature review explores sustainable fashion consumption (repurposing) influenced by Edu-influencers on Instagram, addressing the limitations of traditional behavioral change theories on social media. It evaluates various perspectives on consumer behavior, sustainable consumption, and social media, highlighting the shortcomings of current behavioral change theories. The review aims to establish the groundwork for forthcoming theoretical and empirical advancements by critically analyzing and synthesizing recent studies associated with the three distinctive bodies of literature. Additionally, it aims to lay the groundwork for future research endeavors within these domains. The findings could inform consumer education, policy recommendations, and communication strategies for sustainable fashion consumption, laying the groundwork for future research and behavioral interventions.