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How beauty-device technologies work, what the research says, and how to read marketing and regulatory claims.

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What Is At-Home Ultrasound Skincare?

How at-home ultrasound facial devices work, what MHz frequencies mean, what the research does and does not show, and how they differ from HIFU and Ultherapy.

Updated October 7, 2026 · 10 min read
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Ultrasound vs LED vs Microcurrent for Aging Skin

What the evidence says about LED masks, microcurrent and at-home ultrasound for fine lines, firmness and texture, and how to choose based on your main concern.

Updated October 7, 2026 · 9 min read
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FDA Cleared vs Listed vs Class I

What “FDA-approved,” “FDA-cleared,” “FDA-registered” and “Class I” mean on beauty devices, the product codes you’ll see, and how to check any device in FDA’s databases yourself.

Updated October 7, 2026 · 9 min read
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At-Home Ultrasound vs Ultherapy/HIFU

Focused vs non-focused ultrasound explained: what at-home devices and in-clinic Ultherapy/HIFU each do, safety, FDA status, cost, and why “at-home HIFU” deserves caution.

Updated October 7, 2026 · 8 min read
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Gels and Serums for Facial Devices

What to put on your skin with LED masks, microcurrent, ultrasound, RF and Medicube devices, with real product examples, prices and what to avoid.

Updated October 7, 2026 · 8 min read