Segmentation by type classifies waterproofing agents into chemical families that influence formulation architecture and performance attributes. Silicone‑based agents, including dimethicone and cyclomethicone, dominate due to their low surface tension and superior film‑forming capability, supporting a broad spectrum of applications from lip color to foundation. Polymer‑based agents, such as acrylates and polyurethane dispersions, occupy a secondary tier, offering high elasticity and resistance to mechanical stress, which is essential for mascara and eyeliner durability. Wax‑derived agents, encompassing carnauba and beeswax derivatives, provide occlusive barriers and are prevalent in lip products where a matte finish is desired. Fluorinated compounds, though limited by regulatory scrutiny, still contribute niche functionality in high‑performance skincare where extreme water repellency is required. Each type’s intrinsic physicochemical properties dictate its market share, with silicone agents typically capturing the greatest revenue share, followed by polymers, waxes, and fluorinated options.