A new strategy for pressed powder eye shadow analysis: Allergenic metal ion content and particle size distribution

► Cr, Co and Ni content in eye shadow products. ► Concentration levels higher than 1 or 5 ppm (μg/g), Cr up to 150 mg/g ► Cr released as Cr3+ determination. ► Water dispersible particles sized by sedimentation field flow fractionation. ► Eye shadow Cr concentration as a function of particle sizes.