A dispersant for cosmetics is a crucial functional additive designed to achieve uniform and stable dispersion of powdered ingredients within liquid or semi-solid bases. In color cosmetics and skincare products, solid particles such as titanium dioxide, zinc oxide, mica, and various pigments tend to agglomerate spontaneously due to their high surface energy. The dispersant utilizes its amphiphilic molecular structure, with the lipophilic end firmly adsorbing onto particle surfaces and the hydrophilic end extending into the base oils or aqueous phase. This creates steric hindrance that effectively separates particles and prevents re-agglomeration. This process eliminates clumping, fully develops the particles' coverage and tinting strength, ensures a delicate texture and even color distribution, while significantly enhancing product stability by preventing sedimentation and separation during storage. It is an indispensable component for formulating high-quality cosmetic products.