Abstract:Red algae, belonging to the phylum Rhodophyta, are an ancient and different group of marine algae that play critical ecological and profitable places. set up generally in marine surroundings, they're notable for their distinct red saturation deduced from phycoerythrin, which enables photosynthesisindeed in light conditions. Red algae contribute significantly to marine ecosystems as primary directors, niche formers, and facilitators of coral reef conformation through the deposit of calcium carbonate in species like coralline algae. Economically, red algae are a source of bioactive composites, including polysaccharides similar to agar and carrageenan, extensively used in food, medicinal, and ornamental diligence. They're also studied for their eventuality in biofuel products due to their high carbohydratecontent. Despite their significance, red algae face pitfalls from climate change, pollution, and niche destruction, emphasizing the need for sustainable operation and conservation. This review highlights the natural characteristics, ecological significance, and marketable operations of red algae, emphasizing their value to both natural ecosystems and mortal diligence. [avf_view name="Article Addons" view-id="66d98451c48e3"]