Liquid detergents are widely used household and industrial cleaning agents, formulated with surfactants, water, enzymes, and additives to effectively remove dirt, grease, and stains. Their liquid form makes them easy to measure, pour, and dissolve, providing superior solubility and cleaning performance in both cold and warm water. Enzyme-based formulations enhance stain removal by breaking down proteins, oils, and starches, while optical brighteners and fragrances improve the overall laundry and cleaning experience. Liquid detergents are considered gentler on fabrics compared to powders, and many modern formulations are dermatologically tested to ensure safety for sensitive skin. With a pH typically between 6.5 and 9.0, they maintain effective cleaning action without damaging textiles. They are widely used in laundry, dishwashing, and multi-surface cleaning. From an environmental standpoint, biodegradable surfactants are now prioritized to minimize ecological impact. Packaged in bottles, refill pouches, or bulk containers, liquid detergents are also evolving toward concentrated formulations to reduce packaging waste and transportation costs. With their versatility, convenience, and efficiency, liquid detergents have become a preferred choice globally, meeting the growing demands of households and industries alike.