Surfactants are widely used in various industries for their ability to reduce surface and interfacial tension, facilitating processes such as emulsification, foaming, and detergency. The behavior of surfactants can be significantly influenced by the presence of additives, which modify their physicochemical properties and performance. This study investigates the effects of different types of additives, including salts, co-surfactants, alcohols, polymers, amino acids, and drugs on micellization behavior of surfactants. The findings reveal that additives alter critical parameters like critical micelle concentration (CMC), micelle size, surface tension, and adsorption kinetics at interfaces. On the basis of their compatibility with surfactants, different types of additives can enhance or inhibit micellization. The present work elaborates certain techniques like conductivity, uv-visible, fluorescence, volumetric, compressibility, and surface tension to examine CMC and other thermodynamic parameters. These insights are crucial for optimizing surfactant systems in applications ranging from enhanced oil recovery and pharmaceuticals to personal care products. Understanding the interplay between surfactants and additives provides a foundation for designing tailored formulations with improved efficiency and functionality.