Are these skin care devices all hype, or are there science-backed benefits?

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How do these popular skincare devices really stack up against one another?

There’s a fine line between skincare innovation and skincare theater, and red light therapy has spent the last few years ...

Wellness influencers tout the therapy's power for everything from rejuvenating skin and hair to boosting longevity. Devices sold for at-home use abound. We look at the evidence behind the hype.