Metal Concentrations in Cosmetics Commonly Used in Nigeria

Figure 4

Lead and nickel concentrations (mg/kg) in soap. Suggested safe levels of Gondal et al. (0.5 ppm), Expert Panel 2007 (0.2 ppm), and Germany (1 ppm). Suggested safe levels of nickel: Gondal et al. (5 ppm), Basketter et al. low limit level (1 ppm), and Basketter et al. high limit level (5 ppm).