ANN ARBOR, Mich. — Treating the skin with estrogen can stimulate collagen production—which improves the appearance of the skin—in areas not typically exposed to the sun, according to new research from the University of Michigan Health System.
But in sun-damaged skin, the same treatment does not increase collagen production, the study found. The findings elucidate why it is so difficult to reverse the effects of sun damage on the skin, says lead author Laure Rittie, Ph.D., research investigator in the U-M Department of Dermatology.