"A curly follicle makes curly hair," said Bruno Bernard, head of hair biology at L'Oreal. "This is a breakthrough. For a very long time people did not understand how hair got curly."
Although the team has yet to find a "master switch" that controls follicle shape, Mr Bernard said it was now possible to think about how to change hair shape by using hormones or drugs.
"It is now possible to use biological methods to make curly hair straight and vice versa," he said.
Via Michael K.
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