This review discusses the physicochemical and functional properties of biosurfactants, emphasizing their advantages over synthetic surfactants. Biosurfactants, produced by microorganisms, are natural alternatives to chemical surfactants, which have environmental and health concerns. They are primarily composed of lipopeptides, glycolipids, phospholipids, and glycolipoproteins, with lipopeptides being the most studied due to their versatile properties, including emulsifying, antimicrobial, anticancer, and anti-inflammatory effects. Biosurfactants are classified based on their source, headgroup charge, and solubility. They are more biodegradable, environmentally friendly, and effective in various industrial applications, including food, pharmaceuticals, and bioremediation. The review highlights the potential of biosurfactants in reducing surface tension, improving emulsification, and exhibiting antimicrobial, antifungal, anti-adhesive, and antiviral activities. Additionally, biosurfactants show antioxidant properties, making them suitable for use in food and pharmaceutical applications. The study also discusses the production, purification, and characterization of biosurfactants, as well as their stability under various conditions. Overall, biosurfactants are considered promising alternatives to synthetic surfactants due to their environmental benefits and diverse functional properties.This review discusses the physicochemical and functional properties of biosurfactants, emphasizing their advantages over synthetic surfactants. Biosurfactants, produced by microorganisms, are natural alternatives to chemical surfactants, which have environmental and health concerns. They are primarily composed of lipopeptides, glycolipids, phospholipids, and glycolipoproteins, with lipopeptides being the most studied due to their versatile properties, including emulsifying, antimicrobial, anticancer, and anti-inflammatory effects. Biosurfactants are classified based on their source, headgroup charge, and solubility. They are more biodegradable, environmentally friendly, and effective in various industrial applications, including food, pharmaceuticals, and bioremediation. The review highlights the potential of biosurfactants in reducing surface tension, improving emulsification, and exhibiting antimicrobial, antifungal, anti-adhesive, and antiviral activities. Additionally, biosurfactants show antioxidant properties, making them suitable for use in food and pharmaceutical applications. The study also discusses the production, purification, and characterization of biosurfactants, as well as their stability under various conditions. Overall, biosurfactants are considered promising alternatives to synthetic surfactants due to their environmental benefits and diverse functional properties.