Table 2.
Characterization of skin surface topography of the crow’s feet area antiaging
| Time (days) | Ry (wrinkle depth) (μm) | Ra (average skin roughness) (μm) |
|---|---|---|
| 0 | 37.2±2.2 | 7.4±0.6 |
| 7 | 30.9±2.1** | 5.7±0.4** |
| 14 | 27.9±1.9* | 4.8±0.4* |
| 21 | 25.1±2.1* | 4.1±0.4* |
Notes: Parameters Ry (wrinkle depth; μm) and Ra (average skin roughness; μm) were measured by skin surface profilometry at day 0 (pre-application), and following a daily antiaging skin care regimen for 7, 14, and 21 days. Results are presented as mean ± SEM.
*
P<0.0001 versus t=0;
**
P<0.001 versus t=0.