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Retinol Lotions Enhances Skin, Reduces Overall Aging

According to a new study from the University of Michigan Health System, lotions containing retinol improve the appearance of skin that has become wrinkled through the normal aging process, and not just skin that has been damaged by exposure to the sun.

Researchers tested lotions containing retinol Vitamin A that is found in many skin-care products on the skin of elderly patients. Lotion containing retinol was used on one arm of each participant, while a lotion without retinol was applied to the other arm.

Wrinkles, roughness and overall aging severity were all significantly reduced in the retinol-treated arm compared with the control arm, according to the study. The production of collagen, due to the retinol treatment, also makes it more likely that the skin can withstand injury and ulcer formation, researchers say.

With the population aging so rapidly, it is important that we find ways of treating skin conditions of elderly people not just for purposes of vanity, but also for the healing of wounds and the reduction of ulcers, says senior author Sewon Kang, M.D., professor of dermatology at the U-M Medical School.

This research serves as an important step forward in the understanding of how aging skin can be improved, researchers say.

In the past, it was everyone believed that retinoids would treat only photoaging, or damage from exposure to sun. This is the first systematic, double-blind study showing that it improves any kind of aging photoaging as well as natural aging, said co-author John J. Voorhees, M.D., the Duncan and Ella Poth Distinguished Professor and chair of the Department of Dermatology at the U-M Medical School.

You can rub it anywhere, and it will help to treat the signs of aging, he added.

The lotion was made at U-M, but U-M will not commercialize this lotion because it was designed only for experimental purposes and, therefore, is cosmetically un desirable. Many retinol containing cosmeceutical creams, however, are sold by various companies. Those specific products were not tested by the U-M team.

The reduction of wrinkles in the studys participants was due to increased collagen production and a significant induction of glycosaminoglycans, which are known to retain large quantities of water. In general, aging skin tends to be thinner, laxer and more prone to fine wrinkles than young skin.

The study appears in the May issue of the journal Archives of Dermatology.


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