Oryza Sativa Starch

Oryza sativa (rice) starch is primarily an absorbent/texture agent used at low to moderate concentrations in powders and creams, and it is generally well tolerated in sensitive and eczema-prone skin. Clinical experience and patch-test data suggest irritation is uncommon, but starches can occasionally cause dryness, friction-related irritation, or rare contact reactions (including from residual impurities), so it is not truly inert. Given these considerations, it fits best as very gentle rather than completely non-irritating. Safety Notes: In commercial leave-on skincare and color cosmetics, Oryza Sativa (Rice) Starch is often used at very low levels (~0.1–1%) as a slip/texture modifier or anti-caking aid, especially when it appears mid-to-late on an INCI list. The upper end is observed in high-absorbency powders, oil-control loose/pressed face powders, dry shampoos, and some solid/powder-to-cream formats where rice starch can be a primary bulking and mattifying agent (commonly 10–30%). Rinse-off products typically sit toward the low end (trace to a few percent) because starch mainly impacts feel and viscosity rather than cleansing performance.