It takes a lot to transform 33-year-old Mandy Moore into a 66-year-old grandmother for This Is Us, and that grueling process is taking its toll on Moore’s skin.

Moore told Refinery29that putting the makeup on takes “about three and a half hours,” and even shared a time-lapse video of the process on Instagram recently.

But the hardest part for the Tangled actress isn’t even the application… it’s the intense removal. She said, “You wrap for the day and everyone’s like, ‘Bye!’ but you still have an hourlong process of taking off the makeup.”

Yep, it’s not a wipe-and-go situation here, and the age spots and wrinkle prosthetics are to blame. “It’s a lot of chemicals,” she explained. “You have to put on a greasy remover lotion in order to remove the prosthetic pieces and the ager, which goes on like a glue that you have to dry with a hair dryer. It makes the skin look crepey and older. Then, I have to wrap my face in hot towels, and we just keep doing that over and over again.”

LOS ANGELES, CA - SEPTEMBER 26: Actress Mandy Moore attends the season 2 premiere of "This Is Us" at NeueHouse Hollywood on September 26, 2017 in Los Angeles, California. (Photo by Jason LaVeris/FilmMagic)

Yikes! Moore also admitted that all these chemicals “ruin” her skin, which she has described as sensitive, but she said that the crew is sympathetic and tries to sandwich her “old Rebecca” days between “young Rebecca” days. “They’re usually pretty good about [that]. They’ll make it so I have a day on and a day off from that makeup,” she shared. “It gives my skin a chance to breathe and acclimate.”

All that time spent in the makeup chair clearly pays off, because Moore looks truly authentic as both young Rebecca and her older, wiser counterpart. We’ll never complain about taking five minutes to remove our smokey eye before bed ever again.

Do you have any makeup removal tricks? Tweet us @BritandCo!

(Photos via NBC, Jason LaVeris/Getty)