The Unofficial Guide to Mary-Kate and Ashley Olsen's Hair Evolution Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer ...

Mary-Kate and Ashley Olsen have solidified ... recounted the evolution of the sisters’ hair routines over two decades, having worked with the Olsen twins since they were 16.

With couture gowns all over the red carpet, Mary-Kate and Ashley Olsen opted for vintage Chanel ... Donning curly hair, boho dresses and layered jewels – this is one to make everyone feel ...

I 'Don't Compete' with Their 'Partnership' Mary-Kate and Ashley Olsen's Hairstylist Reveals Secret to the Sisters' Signature Waves and How Their Hair Differs Mary-Kate and Ashley Olsen's The Row ...

Mary-Kate and Ashley Olsen have a style all their own ... They may seem altogether uninterested in the red carpet excitement, but this event’s stage is all theirs. Mary-Kate and Ashley ...

See Mary-Kate and Ashley Olsen's Best Red Carpet Moments "[They] started getting ... her flowing dress - an ironic outcome given her "no hair tools" policy. Mary-Kate Olsen Shows Off Her ...