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MIAMI (CBSMiami) –Those delicious french fries may be good for you, well, for your hairline but not for your waistline.

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French fries sit on a table at a McDonald’s restaurant February 15, 2006 in Des Plaines, Illinois. (Scott Olson/Getty Images)

Japanese scientists say they’ve found a new treatment for hair loss using a silicon that McDonald’s adds to its french fries to prevent oil splatter.

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According to a paper published in the journal Biomaterials, scientists were able to regrow hair in mice using the method.

The chemical helped the scientists mass-produce something called hair follicle germs which are a key ingredient in hair growth.

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Preliminary research suggests the same method will be just as successful when it’s used on people.