Bananas provide lots of nutrients, some of which may help keep your skin healthy. The fruit has also been used in traditional medicine for some skin conditions, but there isn't enough scientific evidence to support using bananas as anything more than part of a healthy diet.
Nutrients and Skin Health
Bananas provide 22 percent of the daily value for vitamin B-6 and 17 percent of the DV for vitamin C, as well as trace amounts of vitamins A and E, niacin, riboflavin, zinc and selenium.
Vitamin A, riboflavin, niacin, biotin and vitamins B-6 and B-12 all play a role in keeping your skin healthy. The same is true of vitamin C, which may help limit damage to your skin from exposure to the sun, according to the Linus Pauling Institute. Zinc, selenium and vitamin E may all limit your risk for wrinkles.
Traditional and Medicinal Uses
The inside of the banana skin is sometimes used to take the itch out of mosquito bites and rashes and to treat warts or bruises. Mashed banana is used as part of a mask to limit wrinkles, and some people drink a mix of mashed ripe banana and milk to help treat skin allergies, according to an article published in the Journal of Pharmacognosy and Phytochemistry in 2012. The effectiveness of these treatments, however, has not been proven.