Hydrogenated Rice Bran Oil

Hydrogenated rice bran oil is a saturated/emollient lipid used in leave-on products typically at a few percent up to higher levels to improve barrier feel and occlusion; it is not an active and is generally well-tolerated in patch testing with low intrinsic irritancy. In severely reactive or eczema-prone patients, any occlusive lipid can occasionally sting on fissured skin or contribute to follicular irritation depending on the full formula, but the ingredient itself has a low likelihood of provoking irritation when properly formulated. Safety Notes: In commercial skincare, hydrogenated rice bran oil is most often used as a structuring emollient/consistency agent in O/W and W/O creams/lotions and cleansing balms, where it can appear at low levels (~0.1–1%) to tune slip and viscosity. At higher levels it is found in anhydrous balms, stick moisturizers, body butters, and cleansing balms as a primary lipid/structurant, commonly in the 10–30% range and up to ~40% in some high-occlusive consumer products. There are no specific FDA/EU cosmetic concentration limits for this ingredient; practical maxima are driven by texture, melting point, and application feel, with leave-on anhydrous formats typically reaching the highest use levels.