What property does precipitated chalk contribute to cosmetic products?

The property of precipitated chalk that contributes to cosmetic products is its ability to absorb sebum and perspiration while increasing opaqueness. Precipitated chalk, or calcium carbonate, is commonly used in makeup formulations due to its excellent oil-absorbing qualities, making it ideal for products designed for oily or combination skin types. This characteristic helps to keep the skin looking matte and reduces shine throughout the day.

Additionally, its opaqueness enhances the formulation, allowing for better coverage on the skin. In products like foundations and powders, this opaqueness helps to create a more uniform appearance. The combination of oil-absorption and the ability to provide a smooth, even finish makes precipitated chalk a valuable ingredient in various cosmetic applications.