Recently, important sorting and summarization have been made in research and testing technologies related to emulsion stability, providing key technical references for industries relying on emulsion systems such as cosmetics and chemicals. As a core dosage form widely used in cosmetics, pesticides and other fields, emulsion stability directly determines product efficacy and shelf life. The implementation of relevant research results will promote industrial quality upgrading. Emulsion instability is mainly manifested in three processes: flocculation, stratification and coalescence. Among them, flocculation and stratification can be reversed by shaking and stirring, while Ostwald ripening caused by coalescence will lead to complete separation of emulsions, which is an irreversible serious problem. In addition, external factors such as temperature changes, microbial contamination and UV radiation also significantly affect emulsion stability. To accurately evaluate stability, the industry has formed two major technical paths: accelerated storage tests and modern instrument measurements. The former includes freeze-thaw cycles, centrifugal tests, etc., while the latter covers advanced methods such as rheological measurement, dielectric spectroscopy analysis and ultrasonic scanning. Notably, the application of dispersion stability analyzers has achieved significant breakthroughs. Based on the principle of multiple light scattering, the equipment can analyze systems with concentrations up to 60% without dilution, with a particle size detection range of 0.1μm to 1mm. It can accurately capture droplet movement and particle size changes, providing detailed data support for emulsion research and development. Ultrasonic scanning, with the advantage of penetrating opaque materials, effectively complements the limitations of light scattering measurement and can real-time monitor key processes such as crystallization and phase separation. The combination of these technical achievements and high-quality raw materials has become the core driving force for industrial innovation. For example, new raw materials such as alkyl-modified trisiloxane, with characteristics of ultra-low surface tension and rapid penetration, play an important role in improving emulsion absorption efficiency and user experience, and are widely used in personal care products and pesticide formulations. For more information, you can click: https://www.tiktok.com/@mia_iot