The Unofficial Guide to Mary-Kate and Ashley Olsen's Hair Evolution. Let's take a walk down memory lane in honor of the sisters' 31st birthday. By. Jillian Ruffo. Jillian Ruffo.

Mary-Kate wore her strawberry blond hair pinned up and a contrasting blue eyeliner, while Ashley showed off blond hair with bangs. Getty At the 2005 amfAR Gala, they both went with textured curls.

Mary-Kate and Ashley Olsen have certainly come a long way from their days on Full House, ... Mary-Kate Olsen wore her hair in natural waves, while Ashley Olsen opted for a sleek low pony. 10.

Celebrity hairstylist Mark Townsend has been working with Mary-Kate and Ashley Olsen for more than 20 years. In a new episode of the 'Gloss Angeles' podcast, the pro spilled his secrets to ...

Ashley Olsen and Mary-Kate Olsen on the J. Mendel front row at New York Fashion Week in 2012. Stephen Lovekin/Getty Images. A prime example is the Met Gala look Ashley, now 38, wore in 2013: a ...

Ashley's hair is much curlier and much darker, but Mary-Kate's is a little bit more coarse." In 2013, Townsend spoke with PEOPLE about collaborating with the pair. “They have such amazing style ...

Mary-Kate and Ashley are known for their Rapunzel-level strands that always have the chicest waves and tousled, effortless vibe, whether they’re worn in a messy bun or flowing down their backs.

Want hair like Mary-Kate and Ashley Olsen? The “Olsen dip” is back, and boho girls will adore this hair trend. Learn more about it.

Mark-Kate and Ashley Olsen are, fashionably speaking, known for two things: good style and good hair. For decades, The Row designers, both 38, have made a mark on the beauty industry for their ...