Table 3.
Differences in clinical skin aging parameters after 12 weeks of study supplementation as assessed by dermatologist raters
| Clinical skin aging Parameter |
Overall (N = 28) | Non-smokers (N = 17) | Smokers (N = 11) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Mean | SD | P | Mean | SD | P | Mean | SD | P | |
| Fine wrinkling | -0.571 | 2.516 | 0.24 | +0.235 | 1.821 | 0.60 | -1.769 | 2.743 | 0.04 |
| Deep wrinkling | +0.033 | 3.054 | 0.95 | -1.853 | 1.579 | 0.00 | +2.500 | 2.754 | 0.01 |
| Surface evenness | +0.429 | 1.874 | 0.24 | +0.882 | 1.996 | 0.09 | +0.154 | 1.819 | 0.77 |
| Elasticity | +0.161 | 2.415 | 0.73 | +1.353 | 1.730 | 0.01 | -1.115 | 2.468 | 0.13 |
| Glow | +1.179 | 3.151 | 0.06 | +0.235 | 3.073 | 0.76 | +2.538 | 2.570 | 0.00 |
| Hydration | -0.786 | 2.234 | 0.07 | +0.294 | 0.985 | 0.24 | -1.846 | 2.824 | 0.04 |
Smokers showed decreased fine wrinkles and increased glow, but decreased hydration. Non-smokers showed decreased deep wrinkling and increased elasticity. Values are the average of scores given by the four raters. Negative values indicate decrease, positive values indicate increase. P-values calculated using two-sided t-tests. SD, standard deviation.