Researchers regrow hair on wounded skin by activating the “sonic hedgehog” signaling pathway used by skin cells that form the roots of hair in mice. The findings better explain why hair does not normally grow on wounded skin, and may help in the search for better drugs to restore hair growth.

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Researchers regrow hair on wounded skin by activating the “sonic hedgehog” signaling pathway used by skin cells that form the roots of hair in mice. The findings better explain why hair does not normally grow on wounded skin, and may help in the search for better drugs to restore hair growth.