Trace metals in cosmetic facial talcum powders marketed in Nigeria

Abstract

The aim of this study was to determine the concentrations of Pb, Cd, Co, and Cr in cosmetic talcum powders regularly used in Nigeria. The samples were mineralized using acids and the trace metal concentrations measured using flame atomic absorption spectrophotometer. Mean concentrations of the trace metals analyzed were 5.0 ± 1.0 mg kg−1 for Pb, 2.1 ± 0.3 mg kg−1 for Cd, 0.7 ± 0.1 mg kg−1 for Co, and 0.2 ± 0.1 mg kg−1 for Cr. Higher metal concentrations compared to others were obtained in few samples manufactured by certain companies, indicating that raw materials used and exogenous contamination could be major contributory factors. The results of this study were generally within regulatory limits. The slightly elevated levels of Pb in few samples indicate that the use of certain talcum powder products could constitute trace metal exposure routes to users. Thus, there is a need for regulation of trace metal levels in cosmetic powders through the establishment of national guidelines.