Baseline | After 8 weeks | Observed effect | Paired t test p-value | Effect Size (ES) | ||||
Mean | (SD) | Mean | (SD) | Mean | (SD) | |||
Total, n = 40 | ||||||||
Pigmented spots | 3.45 | (0.93) | 2.75 | (0.54) | 0.70 | (0.82) | <0.0001 | 0.75 |
Rough complexion | 3.20 | (0.85) | 2.55 | (0.64) | 0.65 | (0.86) | <0.0001 | 0.76 |
Red complexion | 2.70 | (1.14) | 2.23 | (0.83) | 0.48 | (1.22) | 0.0183 | 0.41 |
Wrinkle | 3.15 | (0.95) | 2.60 | (0.63) | 0.55 | (0.81) | 0.0001 | 0.58 |
Obvious pores | 3.48 | (1.04) | 2.70 | (0.56) | 0.78 | (1.12) | <0.0001 | 0.75 |
30 - 50 years, n = 25 |
|
|
|
| ||||
Pigmented spots | 3.60 | (0.91) | 2.80 | (0.50) | 0.80 | (0.82) | <0.0001 | 0.88 |
Rough complexion | 3.28 | (0.74) | 2.68 | (0.63) | 0.60 | (0.76) | 0.0006 | 0.81 |
Red complexion | 2.92 | (1.12) | 2.40 | (0.82) | 0.52 | (1.08) | 0.0247 | 0.46 |
Wrinkle | 3.24 | (1.05) | 2.68 | (0.56) | 0.56 | (0.87) | 0.0037 | 0.53 |
Obvious pores | 3.64 | (0.91) | 2.80 | (0.50) | 0.84 | (0.90) | <0.0001 | 0.92 |
50 - 65 years, n = 15 |
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|
|
| ||||
Pigmented spots | 3.20 | (0.94) | 2.67 | (0.62) | 0.53 | (0.83) | 0.0266 | 0.56 |
Rough complexion | 3.07 | (1.03) | 2.33 | (0.62) | 0.73 | (1.03) | 0.0156 | 0.72 |
Red complexion | 2.33 | (1.11) | 1.93 | (0.80) | 0.40 | (1.45) | 0.3047 | 0.36 |
Wrinkle | 3.00 | (0.76) | 2.47 | (0.74) | 0.53 | (0.74) | 0.0148 | 0.70 |
Obvious pores | 3.20 | (1.21) | 2.53 | (0.64) | 0.67 | (1.45) | 0.0961 | 0.55 |