The same lipstick Pb concentrations as those used for adults were used for children (1.01 and 2.52 ppm for the average and high Pb concentrations, respectively), but the ingestion rates for children were assumed to be 25% that of adults. Specifically, the average and high ingestion rates for children were 25% the average and high ingestion rates for adults to be conservative, or 6 and 21.8 mg/day, respectively