Test time | Stratum corneum hydration (A.U) | Increase rate % |
0 week | 44.95 ± 20.88 | - |
1 week | 73.67 ± 24.98** | 63.90 |
2 week | 80.60 ± 30.31** | 79.32 |
4 week | 78.13 ± 26.35** | 73.81 |