FDA Cleared vs FDA Listed vs Class I: What Beauty Device Labels Really Mean

The short answer

The labels, decoded

† GlowLab's publisher, Dalmie LLC, is a US retailer of Quadthera and may earn from sales.

Class I, II and III

FDA sorts medical devices into three classes by risk. Class I is the lowest and Class III the highest, and all classes are subject to “general controls,” the baseline rules in the Food, Drug and Cosmetic Act (FDA: Classify your medical device). Class II devices usually also have “special controls,” such as specific testing or labeling, and most need a 510(k). Many Class I and some Class II device types are exempt from the 510(k) requirement (FDA: Premarket Notification 510(k)).

For beauty devices, this matters because the same-looking gadget can sit in different classes depending on what it does and claims. An over-the-counter LED mask marketed to reduce wrinkles is Class II and needs clearance. A handheld marketed as an electric massager can fall into a Class I, exempt category.

What “FDA-cleared” means

A 510(k) is a premarket submission showing a device is “substantially equivalent” to a legally marketed predicate: the same intended use and either the same technology or different technology that doesn’t raise new safety or effectiveness questions. The evidence can include bench testing, electrical safety, biocompatibility and sometimes clinical data. When FDA agrees, it issues an order that “clears” the device for marketing (FDA).

Every clearance has a K-number and an “indications for use” statement. That statement is the important part: it says what the device is cleared to do, for example the treatment of facial wrinkles or facial stimulation for cosmetic use.

What “FDA registered” or “listed” means

Companies that make or import devices for the US must register their establishment with FDA and list the devices they sell. That’s an administrative requirement, not a review. FDA’s own regulation says registration and the assignment of a registration number do “not in any way denote approval” of the firm or its devices, and that any representation creating that impression is misleading and constitutes misbranding (21 CFR 807.39).

Many K-beauty devices, including Medicube’s Booster Pro line and several ultrasound handhelds, are listed under code ISA, “massager, therapeutic, electric,” a Class I category exempt from 510(k) (21 CFR 890.5660). That’s a legitimate way to market a low-risk device. It just isn’t clearance.

Quadthera’s Titan is also Class I listed under ISA and is not FDA-cleared. We label it that way everywhere it appears on this site.

Product codes you’ll see for beauty devices

What a label doesn’t tell you

• How well a device works compared with others. Clearance isn’t a ranking. Two cleared masks can differ a lot in coverage and output.
• That a listed device doesn’t work. Class I listing says nothing either way about results. Look for studies, and check who ran them.
• That the device you’re buying is the one cleared. Clearances cover specific models. A new version may have its own K-number, or the brand may rely on an earlier one. Ask if it isn’t clear.

How to check a device yourself

1. Look for a K-number on the product page, box or manual. If there isn’t one, email the brand and ask.
2. Search FDA’s 510(k) database by K-number, device name or applicant. Try the manufacturer’s name too: CurrentBody’s Series 2 mask, for example, was filed by Shenzhen Kaiyan Medical Equipment, not under CurrentBody’s name.
3. Read the decision summary or indications for use, if available, to see exactly what it was cleared for.
4. If it’s “registered,” search FDA’s Registration & Listing database to see the product code. If the code is a Class I exempt one like ISA, you know there was no premarket review.
5. Optionally, check AccessGUDID, FDA’s device identifier database, which shows the product code and whether a device is exempt from premarket review.

Red flags in marketing

• “FDA-approved” on a device that’s actually cleared or listed. Sometimes it’s sloppy wording; sometimes it’s deliberate.
• “FDA-registered” presented as an endorsement, especially next to a seal or badge.
• “FDA-certified,” which isn’t a status FDA grants to beauty devices.
• Clinic-device claims (“HIFU at home,” “medical-grade”) on a product that’s Class I listed. See at-home ultrasound vs Ultherapy/HIFU.

Every product guide on GlowLab lists each device’s FDA status as we found it, with K-numbers where we could verify them. See, for example, the best LED face masks, the best microcurrent devices and the best at-home ultrasound devices.