Topic

Red light therapy

Photobiomodulation is the one skincare category where the device specification matters more than the brand. Wavelength, irradiance and dose are measurable, the clinical literature is real, and most marketing quietly ignores both.

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  Evidence review

  Red light therapy: what the evidence actually shows

  What red and near-infrared light do to skin, which wavelengths the trials actually used, and how the Dr. Renú SpectraLift and CurrentBody Series 2 compare.

  15 September 2026