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Has there ever been a better time to start rubbing McDonalds fries all over your scalp? It turns out a chemical used to cook french fries at McDonald's may be able to regrow hair.

Researchers at Yokohama National University in Japan discovered that when they cultured cells using the chemical dimethylpolysiloxane, they could mass produce hair follicles that grew hair on test mice. Dimethylpolysiloxane is found in silicone and added to the fry oil at McDonald's to prevent it from popping and spraying when it cooks their famous fries. The hope is that the chemical may one day be able to grow hair on humans as well.

According to Biomaterials, scientists using dimethylpolysiloxane were able to grow 5000 hair follicle germs (HFGs), the reproductive source of hair follicles that then grow and sustain hair. When those follicles were transplanted onto bald mice, the areas affected began sprouting tufts of black hairs. The research group confirmed the hair growth transplants were effective on both the scalps and backs of the mice in mere days. Junji Fukuda, a professor at Yokohama National University, explained that using the chemical made a huge difference to the success of creating the hair follicle germs.

Researchers are hopeful the discovery could lead to a breakthrough in treating hair loss. "We have preliminary data that suggests human HFG formation using human keratinocytes and dermal papilla cells," said Fukuda. "We hope that this technique will improve human hair regenerative therapy to treat hair loss such as androgenic alopecia."

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Even though dimethylpolysiloxane was crucial to growing the tufts of hair that formed on the mice, apparently eating a ton of fries from McDonald's isn't exactly an adequate treatment for hair loss in humans. And neither is rubbing french fries on your head, for the time being.

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