Red-light masks are everywhere, and some cost enough to require selling a vital organ.

So do they actually work for wrinkles?

I dug through the better trials, including a 2025 randomized sham-controlled home-mask study, and the answer is: yes, with a buyer-beware asterisk.

In this episode:

What changed in the strongest home-mask trial

Why the researchers saw an improvement that the people wearing the masks didn’t clearly see themselves

What industry funding does and doesn’t tell us

Why results from one red-light device don’t automatically apply to another

What FDA clearance actually means

Four questions to ask before spending several hundred dollars on something that makes you look like a relaxed homicidal maniac

Full article, studies and source links at Deep Kimchi.

Get inside The Training Lab: https://deepkimchi.substack.com/p/training-lab

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Studies & sources

Park et al., 2025 randomized sham-controlled home-mask trial

Wunsch and Matuschka, 2014 controlled trial with randomized treatment arms and a nonrandomized control

Couturaud et al., 2023 uncontrolled mask study

Glass, 2021 clinical review

FDA explanation of the 510(k) clearance process

American Academy of Dermatology consumer guidance

WSJ Buy Side shopping guide that prompted the question — market context only, not scientific evidence



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