In the Islamic banking system, Sharia compliance is considered a fundamental pillar of product development. The design of Islamic financial products must be in such a way that, while responding to the economic needs of the market, they must also comply with jurisprudential principles such as the prohibition of usury, gharar, maysar, oppression, and prohibited objects. This process requires close supervision by Sharia boards and regular Sharia audits to ensure the jurisprudential and ethical integrity of the products. However, the structural similarity of some Islamic products to conventional instruments has attracted significant criticism at the theoretical and practical levels. This article, while reviewing critical views on imitating conventional structures, emphasizes the need to develop regulatory frameworks and jurisprudential innovation. It also examines the vital role of Sharia supervisory boards and bank management in aligning Sharia requirements with market expectations. The findings show that effective adherence to Sharia principles not only guarantees the legitimacy of products, but also leads to customer trust and strategic differentiation of Islamic banks in today's competitive market.