Gillian Anderson has never gone under the knife – but admits it's not out of the question.
"At 47, I feel quite strongly that I wouldn't do plastic surgery, but also, I know that I am a vain woman," The X-Files star tells PEOPLE. "Talk to me in ten years – they may have invented something which feels less invasive, and then it's possible that the line will be easier to cross."
"I don't want to say never," she continues. "I don't want to be hypocritical about it. But also, at this juncture, I just hope that I would be able to embrace these stages of my aging face, and not feel like something was wrong and that it needed to be fixed through surgery."
Anderson, who stars as Blanche DuBois in a production of A Streetcar Named Desire opening this Saturday in Brooklyn, previously shot down plastic surgery rumors in February, after a tabloid accused her of having surgery and Botox.
"If it weren't so sad, this bollocks would have made my day," she posted on Facebook afterwards.
She also shared a natural-looking photo, captioning it, "This is how I really look! #agingwithoutshame."
The actress – who was named one of PEOPLE's World's Most Beautiful Faces of the Year – believes there is too much pressure on women, especially those living in the spotlight, to stay young.
For more from Anderson and our other Faces of the Year, pick up the World's Most Beautiful issue of PEOPLE, on newsstands Friday
"It's sad that in general there's shame around [aging]," she says. "Not only is it common for women to feel shame about aging, but it's common for press and the general public to make people feel bad for their aging, which also contributes to the amount of work that women end up having done."
Even though she knows society's demands for women to remain ageless are unreasonable, she's still affected by it.
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"I fall prey to it myself," Anderson says. "I notice my own opinions about changes that are happening on my body and face, and the feelings that come up as a result of that."
Anderson hopes society can begin to appreciate and cherish aging, rather than shun it.
"I think if we shifted our perception, and embraced the natural aging process as something that was celebrated rather than shamed and made taboo, women would respond to it differently."
Reporting by JODI GUGLIELMI