When Sarah Palmyra, a beauty influencer, posted a TikTok about her family's skin, her followers couldn't believe her grandmother was in her nineties because of her supple skin and . Palmyra's followers were eager to find out what 90-year-old Nevenka, who declined to give her last name, does to keep her . Everyone's skin wrinkles as they age, but genes, , and repeated facial expressions can govern how deep they are and how many develop.

Many people turn to "antiaging" creams and beauty products to lessen the appearance of wrinkles — in 2023, facial antiaging products made over $1 billion in the US, according to Statista. But because the Food and Drug Administration doesn't evaluate beauty products for effectiveness, there's no guarantee they will . Palmyra told Business Insider that Nevenka has been looking after her skin since her early teens, following a skincare regimen every morning and night, never going to bed with makeup on, and using .

Sunscreen is the most important part of Nevenka's routine, a dermatologist says Dr. Derek V. Chan, a board-certified medical and cosmetic dermatologist in Manhattan, told BI that wearing sunscreen is "by far the most important part" of Nevenka's skincare routine.

When Nevenka is outside, she always wears sunglasses, a hat, and sunscreen, Palmyra said. Chan recommended wearing sunscreen with an every day, and wearing a broad-brimmed hat, which is more protective than a baseball cap. She uses lots of hydrating, antiaging skincare product.