Table 2.
Baseline characteristics of study participants (*, p < 0.05; **, p < 0.01; ***, p < 0.001).
| Placebo (n = 45) | Cysteine peptides (n = 45) | p value | |
|---|---|---|---|
| Age (mean ± SD) | 47.5 ± 5.6 | 47.5 ± 7.8 | 1.000 |
| Female, n (%) | 29 (64%) | 27 (60%) | 0.827 |
| Skin phototypes (II, III) | 2.3 ± 0.4 | 2.3 ± 0.5 | 0.816 |
| MED (mJ/cm2) (mean ± SD) | 33.8 ± 4.1 | 33.9 ± 4.8 | 0.919 |
| L*value (mean ± SD) 7 days after 1.5 MED irradiation | 60.9 ± 2.7 | 61.3 ± 2.4 | 0.415 |
| Melanin indices (mean ± SD) 7 days after 1.5 MED irradiation | 151.8 ± 45.6 | 148.6 ± 39.7 | 0.720 |