The doctor on video

LED masks: reality or fiction?

With Doctor Florian A. Vallecillo Cabrera· Published: 26 August 2026
The doctor on video
Subtitles2:41

Video in Spanish · subtitles available

Do LED masks really work, or do they just light your face up red? In this video I explain the difference between red light and photobiomodulation, and what to look for before buying one.

LED masks are everywhere, but do they actually do anything? In this video I explain what photobiomodulation is and why it is not the same as 'shining red light on your face'. We talk about the parameters that truly matter — wavelength, power reaching the skin, time and dose —, about why more light does not mean better results, and about the differences between a professional device and many home masks. The key idea: before focusing on the design or an Instagram photo, ask yourself what technical parameters the device uses.

Doctor Florian A. Vallecillo Cabrera

Doctor Florian A. Vallecillo Cabrera

The doctor on video

Informational content by Doctor Florian A. Vallecillo Cabrera. It does not replace an in-person consultation or an individual diagnosis.

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