#Does TikTok’s sunscreen contour hack work?

She’s harnessing the power of the sun to make herself look hot.

Eli Withrow, an LA model, says that carefully combining two different levels of sunscreen can help create the illusion of a contoured face and toned abs.

In a now viral TikTok, she reveals her hack for a “naturally snatched” look. The beauty uses a “base layer” of SPF 35 — “Glossier sunscreen, which I do daily,” she tells The Post — followed by strategic smears of SPF 90 on the places she’d normally highlight, such as her jawline and the bridge of her nose. After sunbathing, the highly slathered spots will appear lighter. “The sun will contour your face,” she says.

Followers have been quick to test it out, including Esther Hong, a 24-year-old upstate NY native. “It is barely noticeable,” she says of her experiment with SPF, “[But] there’s a natural bronzed look below my cheekbones.”

“Haters will say it doesn’t work,” Withrow says in her video. She’s right about that.

“This is not the way to go about contouring,” says Dr. Michelle Henry, a Midtown dermatologist and a professor at Cornell’s medical school. She cites the risks of cancer from sun exposure — ”We know that UV light is a carcinogen” — as well as simple science as a reason to skip the social-media trend.

“The execution would be almost impossible,” says Henry, who explains that natural sunlight lacks laser-focus. “Something like the curve of your cheek, or a cloud, will scatter the light from the sun.”

More, she says that sunscreen’s SPF, which stands for sun protection factor, protects from most UV rays if used correctly, regardless of the number on the bottle. “That 2% difference in UV protection is not dramatic enough to create this snatched look,” she says.

Henry says that makeup and dermal fillers such as Botox and Juvéderm are safer alternatives for facial sculpting.

Withrow isn’t claiming to be a medical professional.

“These results aren’t exactly scientific method,” says Withrow in a follow-up video. “My cheeks seem to be a little more tan.” She tells The Post that she’s planning to try her sunscreen trick again over the holiday weekend.

The model also cops to using non-UV methods to highlight her cheekbones — the kind a doctor would be more likely to recommend.

“You can achieve the exact same results using self-tanner,” she says.