Structured products are pre-packaged investments based on derivatives like securities, indices, commodities, debt, and currencies. They were created to meet needs not met by standardized financial instruments and can be used for asset allocation, risk reduction, or profiting from market trends. Structured products involve combining underlying assets with derivatives to create new securities with targeted risk and return profiles. While they may provide benefits like principal protection, tax efficiency, or enhanced/reduced volatility, they also carry risks like credit risk, lack of liquidity, and complexity.