Self-tanner was obviously involved.

Primorac had access to every Barbie doll ever made to prepare for the film.

But Nkosi hit the nail on the head, using Isle of Paradise products during production.

Ryan Gosling as Ken in Barbie Movie

Warner Brothers

Its about a feeling more than a look.

Goslings tan is warm, but it has faint rosy undertones that make it appear natural.

As it turns out, Nkosi took every aspect into consideration, including set lighting.

Ryan Gosling wearing fur jacket in Barbie movie

Warner Brothers

Being mindful of this and being consistent is key to achieving a flawless tan each and every time.

The final effect was a perfect Ken tan from his plastic head down to his toes.

All the Kens in the barbie movie

Warner Brothers