Why curly hair is curly

If you have curly hair you know it can be unruly, it can’t be tamed. People spend thousands on anti-frizz, hair straightners and gel.

But here’s some research that may just help. Kiwi scientists have discovered what causes curly hair, and no it’s not eating your crusts, and that may help find a way to keep them in check. 

Senior scientist at AgResearch, Dr Duane Harland explains what sheep have to do with it. 

Why curly hair is curly
0:00 / 10:15