Build a better skin barrier

Why an oil-based ointment is best for dry skin.

Dry skin becomes more common with aging, and problems with dry skin can be even more pronounced during the winter. "The air is dry inside because of heating, and outside because of a lack of humidity, and that takes moisture out of your skin," explains Dr. Kenneth Arndt, a Harvard Medical School professor. Dry skin can lead to itching, flaking, and even infection in severe cases.

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