The Eternas Journal

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At-Home Radiofrequency for Firmer Skin: How It Actually Works
Anti-Aging

At-Home Radiofrequency for Firmer Skin: How It Actually Works

Radiofrequency has firmed skin in clinics for years, and now it's in at-home wands. Here's how a little controlled heat rebuilds collagen, and how to use an RF device safely.

AcneBlue Light Therapy for Acne: What the Research Actually Shows | Eternas

Blue Light Therapy for Acne: What the Research Actually Shows | Eternas

Most acne treatments leave skin red or peeling. Blue light takes a different route: it targets the bacteria behind breakouts without stripping your barrier. Here's what the research shows.

At-Home DevicesDoes Red Light Therapy Actually Work? The Science of LED Skincare | Eternas

Does Red Light Therapy Actually Work? The Science of LED Skincare | Eternas

Blue, red, near-infrared: the numbers on an LED device aren't decoration. Here's what each wavelength actually does for your skin, and how to match the light to your concern.