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The effect of active ingredient application on pro-collagen I in human dermal fibroblasts in vitro.
| Ingredient A | Ingredient B | A | B | A+B combined | A/B rotation | B/A rotation |
|---|---|---|---|---|---|---|
| % change in pro-collagen I production | ||||||
| Phytol 0.0001% | Retinol 0.00003% | 19.1 | 3.9 | 7.09 | 75.7* | 92.6* |
Rotational treatment led to a significant (p < 0.05) increase in pro-collagen I production compared to other treatments.
Means p < 0.05 or statistically significant result.
