Table 4.
Summary of NRS Rating for Various Skin Characteristics
| Parameters | Day | RGLE (n=10) | Change | Placebo (n=12) | Change |
|---|---|---|---|---|---|
| Mean (SD) | Mean Change from Baseline (SD) | Mean (SD) | Mean Change from Baseline (SD) | ||
| Radiance | Day 0 | 4.30 (2.58) | – | 5.67 (1.44) | – |
| Day 28 | 6.20 (1.69) | 1.9 (3.07) | 5.75 (2.01) | 0.08 (3.03) | |
| Day 56 | 7.20 (1.40) | 2.9 (2.85) | 6.92 (2.15) | 1.25 (3.05) | |
| Complexion | Day 0 | 4.20 (2.44) | – | 5.50 (1.78) | – |
| Day 28 | 5.50 (0.85) | 1.3 (2.36) | 6.33 (1.97) | 0.83 (1.85) | |
| Day 56 | 7.30 (1.89) | 3.1 (2.77) | 7.92 (1.38) | 2.42 (1.88) | |
| Luminosity | Day 0 | 4.30 (2.45) | – | 5.08 (2.07) | – |
| Day 28 | 5.20 (0.79) | 0.9 (2.85) | 5.83 (2.82) | 0.75 (3.19) | |
| Day 56 | 6.90 (2.02) | 2.6 (2.84) | 7.42 (2.43) | 2.33 (2.77) | |
| Homogeneity | Day 0 | 4.30 (2.16) | – | 5.00 (2.04) | – |
| Day 28 | 5.30 (1.34) | 1 (2.71) | 6.33 (2.39) | 1.33 (2.06) | |
| Day 56 | 7.40 (1.90) | 3.1 (3.03) | 7.33 (1.72) | 2.33 (2.67) | |
| Smoothness | Day 0 | 4.10 (2.56) | – | 5.58 (2.94) | – |
| Day 28 | 6.20 (1.40) | 2.1 (1.85) | 6.67 (2.57) | 1.08 (2.61) | |
| Day 56 | 6.60 (1.90) | 2.5 (3.17) | 7.58 (2.71) | 2.00 (4.47) | |
| Texture | Day 0 | 3.20 (1.99) | – | 5.92 (2.11) | – |
| Day 28 | 5.90 (1.79) | 2.7 (2.83) | 6.92 (2.64) | 1.00 (2.76) | |
| Day 56 | 6.20 (1.55) | 3.0 (2.54) | 7.58 (2.35) | 1.67 (3.14) | |
| Firmness | Day 0 | 5.00 (1.76) | – | 5.58 (1.73) | – |
| Day 28 | 5.70 (1.49) | 0.7 (1.49) | 6.33 (2.27) | 0.75 (1.42) | |
| Day 56 | 6.00 (1.76) | 1.00 (2.40) | 6.00 (3.30) | 0.42 (4.21) | |
| Skin hydration | Day 0 | 3.80 (1.87) | – | 5.83 (2.62) | – |
| Day 28 | 5.50 (0.85) | 1.70 (1.83) | 6.75 (1.86) | 0.92 (2.35) | |
| Day 56 | 6.60 (1.71) | 2.8 (2.74) | 7.25 (1.76) | 1.42 (2.94) |
Note: Values are presented as mean (SD).
Abbreviations: n, number of participants; NRS, numeric rating scale; RGLE, Rehmannia glutinosa Libosch leaf-based extract; SD, standard deviation.