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TikTok has made finding the latest life hacks a breeze.

person swimming in pool with face toward sun

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But just because ahackbecomes popular doesn’t mean it’s effectiveor even safe.

The SPF contouring trend that has taken over FYPs.

So, if you’re wearing sunscreen then usingsunscreen as a contourshould be fine, right?

What is SPF contouring?

SPF contouring, a.k.a.

(Some userschoose not to apply sunscreen at all in this step).

Is SPF contouring safe?

Any tan means your DNA has been harmed," saysSheilagh Maguiness, MD, a board-certified dermatologist.

In short: Most dermatologists would still be against it.

“Using a lower SPF on the entire face is certainly better than nothing,” Dr. Maguiness says.

But does SPF contouring work?

Can you SPF contour with self-tanner?

It also never hurts to check with your dermatologist before you try something sun-related.

More TikTok beauty trends:

Now, watch Sydney Sweeney’s skin care routine: