Blue biotechnology focuses on harnessing marine and aquatic organisms for applications in healthcare, agriculture, cosmetics, and environmental sustainability. It involves extracting bioactive compounds from algae, bacteria, and other marine life for pharmaceuticals, nutraceuticals, and biomaterials. Key innovations include marine-derived antibiotics, algae-based biofuels, and enzymes for industrial processes. With increasing interest in sustainable resources, blue biotech is emerging as a crucial sector for biopharmaceuticals, food security, and eco-friendly materials.