Topical tretinoin improves photoaged skin. A double-blind vehicle-controlled study. – Cost Effective Supplements

Topical tretinoin improves photoaged skin. A double-blind vehicle-controlled study.

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Link to full study

http://www.ncbi.nlm.nih.gov/pubmed/3336176

Conclusion of this study

Fourteen of the 15 patients who received tretinoin to the face had improvement in photoaging, whereas none of the vehicle-treated patients' faces improved, a statistically significant difference in response between the two groups. Statistically significant histologic changes were seen in forearm skin treated with tretinoin, but not with vehicle cream. Side effects were limited to irritation of tretinoin-exposed skin.