Here's How Margot Robbie Really Achieves Her Barbie Blonde Hair

Barbie Premiere: See Margot Robbie, Ryan Gosling, Dua Lipa & More

Transforming into Barbie isn't as easy as it looks.

Margot Robbie, who plays the iconic doll in Greta Gerwig's upcoming Barbie movie, has continued to channel her character IRL during the international press tour. But nailing the toy's glamorous getups isn't for the faint of heart. Just ask the actress' hair colorist Jacob Schwartz, who revealed the lengthy process that goes into achieving her signature Barbie blonde mane.

"Margot's hair is far from a Barbie doll's," Jacob exclusively told E! News, "which is why it's my priority to keep her hair looking natural, effortless and true …