Cosmetic-grade mineral oils show negligible dermal penetration; the dermal route does not result in significant systemic exposure

This review evaluated the dermal penetration of mineral oils and waxes used in cosmetics, distinguishing between highly refined cosmetic-grade mineral oils and lower-grade industrial mineral oils. The available in-vivo and in-vitro data showed that cosmetic-grade mineral oils (white oils, pharmaceutical grade) have very low dermal penetration and do not result in significant systemic exposure. The authors concluded that concerns about mineral oil safety in cosmetics are based on data from industrial-grade oils that are not used in personal care products. Clean beauty brands nevertheless avoid mineral oil due to consumer perception and its petroleum-derived origin.

European Wax Federation, CONCAWE