| Assay | Skin lotion A | Skin lotion B | ||
|
| Content (μg/mL) | Recovery (%) | Content (μg/mL) | Recovery (%) |
| Day 1 | 608 | 84.7 | 76.5 | 87.1 |
| Day 2 | 614 | 85.7 | 73.1 | 84.0 |
| Day 3 | 499 | 87.2 | 74.9 | 83.7 |
| Day 4 | 536 | 83.2 | 78.3 | 91.3 |
| Day 5 | 538 | 96.1 | 78.1 | 85.1 |
| Ave. ± S.D. (R.S.D.) | 559 ± 56 (10.0%) | 87.4% ± 5.7% (6.5%) | 76.2 ± 2.5 (3.3%) | 86.2% ± 3.5% (4.1%) |