Table 3.
Illustrate the concentrations of Co and Pb (μg/g) in different cosmetics, the standard reference materials values for the SRM hay powder and the permissible limits set by USFDA for Co and Pb.
| Sample code | Co (μg/g) | Pb (μg/g) |
|---|---|---|
| Lawsonia (henna) | ||
| A | 143.05 ± 6.64 | 2.21 ± 0.38 |
| B | 138.22 ± 2.18 | 2.70 ± 0.49 |
| C | 144.91 ± 2.27 | 3.04 ± 0.06 |
| Mean | 141.71 ± 4.86 | 2.60 ± 0.48 |
| R1 | 66.10 ± 3.70 | 2.28 ± 0.28 |
| Foundation cream | ||
| D | 62.05 ± 0.46 | 3.82 ± 0.31 |
| E | 57.19 ± 4.45 | 2.27 ± 0.63 |
| F | 58.75 ± 7.44 | 2.27 ± 0.14 |
| Mean | 59.33 ± 4.84 | 2.79 ± 0.86 |
| R2 | 66.35 ± 5.41 | 1.79 ± 0.19 |
| Kajal (kohl) | ||
| M | 41.33 ± 2.50 | 3.83 ± 0.66 |
| N | 36.71 ± 4.35 | 10.60 ± 1.24 |
| Mean | 39.02 ± 4.06 | 7.22 ± 3.81 |
| R3 | 21.14 ± 3.70 | 1.769 ± 0.52 |
| Skin-whitening cream | ||
| J | 42.97 ± 4.05 | 1.32 ± 0.26 |
| K | 68.26 ± 5.05 | 2.18 ± 0.33 |
| Mean | 55.62 ± 15.07 | 1.75 ± 0.56 |
| Standard Reference Materials [SRM] Hay Powder | ||
| Value found (μg/g) | 0.15 | 1.90 |
| Certified value (μg/g) | 0.13 | 1.60 |
| Recovery % | 115.40 | 118.75 |
| Permissible limit | ||
| USFDA range | ||
| Henna | 10–20 | 5.00 |
| Foundation | 10–20 | 5.00 |
| Skin-whitening cream | 10–20 | 5.00 |
| Kajal (kohl) | 10–20 | 5.00 |