Polyhydroxystearic Acid

Polyhydroxystearic Acid is a multifunctional ingredient widely used in skincare, sun care, and cosmetic formulations, particularly those containing inorganic sunscreen agents like Titanium Dioxide and Zinc Oxide. As a dispersing and emulsifying agent, it ensures pigments and active ingredients are evenly distributed throughout the formula, resulting in smooth, uniform application and consistent performance. This is especially valuable in sunscreens and makeup products, where even coverage is essential for both efficacy and aesthetic appeal.
One of its key benefits is the enhancement of UV protection. By optimizing the dispersion of inorganic sunscreen particles, Polyhydroxystearic Acid increases the efficiency of UV absorption, helping the formulation deliver more reliable broad-spectrum protection. At the same time, it significantly reduces the white cast that is often associated with physical sunscreens, creating a more natural, skin-friendly finish that blends seamlessly into all skin tones.
Additionally, Polyhydroxystearic Acid contributes to the sensory quality of the product, providing a silky, smooth texture that improves spreadability and makes creams, lotions, and makeup products feel lightweight and elegant on the skin. Its gentle, non-irritating profile ensures compatibility with sensitive and delicate skin, making it an ideal choice for high-performance sunscreens, tinted moisturizers, foundations, and other pigment-containing cosmetic products. By combining improved UV efficacy, even pigment dispersion, and a luxurious skin feel, Polyhydroxystearic Acid enhances both the performance and cosmetic elegance of modern skincare and makeup formulations.