Table 10.
Skin lightness changes on panelists skin from baseline to week 4 for the two studied groups–Comparison before/after on dark area. (t-test Student vs. baseline ** p < 0.01, *** p < 0.001).
| L* | ||||
|---|---|---|---|---|
| CpLfe | Placebo | |||
| Timing | Average ± SD | Average ∆% vs. Baseline | Average ± SD | Average ∆% vs. Baseline |
| Baseline | 63.1 ± 0.7 | 62.5 ± 0.9 | ||
| After 2-week treatment (T2w) | 63.8 ± 0.8 | 1.0% ** | 62.4 ± 0.8 | 0.00% |
| After 4-week treatment (T4w) | 64.5 ± 0.7 | 2.2% *** | 62.8 ± 0.7 | 0.60% |
All differences between groups were statistically significant at T4w, p < 0.05 (ANOVA test). L* luminosity.