Evolution of the severity of wrinkles and fine lines | D1 | D15 | D30 | D45 | D75 | D90 | |
0—none | N | 2 | 2 | 3 | 4 | 8 | 8 |
% | 5% | 6% | 8% | 11% | 21% | 21% | |
1—not very marked | N | 12 | 10 | 20 | 24 | 26 | 26 |
% | 32% | 28% | 54% | 65% | 68% | 68% | |
2—marked | N | 16 | 20 | 12 | 8 | 4 | 4 |
% | 43% | 56% | 32% | 22% | 11% | 11% | |
3—very marked | N | 7 | 4 | 2 | 1 | 0 | 0 |
% | 19% | 11% | 5% | 3% | - | - | |
N | 37 | 36 | 37 | 37 | 37 | 38 | |
Mean | 1.8 | 1.7 | 1.4 | 1.2 | 0.9 | 0.9 | |
Sd | 0.8 | 0.7 | 0.7 | 0.6 | 0.5 | 0.6 | |
Min | 0 | 0 | 0 | 0 | 0 | 0 | |
Median | 2 | 2 | 1 | 1 | 1 | 1 | |
Max | 3 | 3 | 3 | 3 | 2 | 2 | |
% of improvement vs D1 |
| −2% | −23% | −34% | −46% | −50% | |
Comparison/D1 versus D15 | NS. p = 0.5541 |
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Comparison/D1 versus D30** | S. p = 0.0042 |
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Comparison/D1 versus D45*** | S. p = 0.0005 |
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Comparison/D1 versus D75*** | S. p < 0.0001 |
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Comparison/D1 versus D90*** | S. p < 0.0001 | ||||||
Comparison/D15 versus D30** |
| S. p = 0.0010 |
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Comparison/D15 versus D45*** |
| S. p < 0.0001 |
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Comparison/D15 versus D75*** |
| S. p < 0.0001 |
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Comparison/D75 versus D90 |
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| NS. p = 0.3613 |