K171588 · Carol Cole Company Dba Nuface · NFO · Jul 31, 2017 · Neurology
Device Facts
Record ID
K171588
Device Name
NuBODY Skin Toning Device
Applicant
Carol Cole Company Dba Nuface
Product Code
NFO · Neurology
Decision Date
Jul 31, 2017
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 882.5890
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
NuBODY Skin Toning Device is intended for body skin stimulation and is indicated for over-the-counter cosmetic use.
Device Story
The NuBODY Skin Toning Device is a handheld, battery-operated device for over-the-counter cosmetic body skin stimulation. It features four fixed, chrome-plated spherical electrodes that deliver low-level electrical impulses (microcurrent) to targeted body areas. The device requires the application of a conductive gel. Operation involves pressing an on/off button, with ascending tonal beeps indicating activation and LED lights indicating output intensity. The device delivers a continuous alternating monophasic square wave, consisting of a burst of 10 positive pulses followed by a burst of 10 negative pulses. It provides audible cues every 5 seconds to prompt the user to relocate the device. Users can adjust the output intensity for comfort. The device automatically shuts off after 5 minutes. By delivering microcurrent to the skin, the device is intended to provide cosmetic toning benefits.
Clinical Evidence
Bench testing only. Testing included evaluation of output waveform characteristics, output energy characteristics, electrical and constructional safety (ANSI/AAMI ES60601-1), and electromagnetic compatibility (IEC 60601-1-2). Results confirmed the device meets design specifications and is substantially equivalent to the predicate.
Technological Characteristics
Handheld device with injection-molded thermoplastic resin housing. Four chrome-plated spherical electrodes. Powered by internal rechargeable lithium-ion battery. Delivers microcurrent as a continuous alternating monophasic square wave (60 ms pulse width, ~8.3 Hz frequency). Complies with IEC 60601-1, IEC 60601-1-2, IEC 60529, IEC 60601-2-10, IEC 60601-1-6, and IEC 62366. Type BF patient contact.
Indications for Use
Indicated for over-the-counter cosmetic body skin stimulation in adults.
Regulatory Classification
Identification
A transcutaneous electrical nerve stimulator for pain relief is a device used to apply an electrical current to electrodes on a patient's skin to treat pain.
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Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
July 31, 2017
Carol Cole Company dba NuFACE Donald Ellis Regulatory Affairs / Ouality Assurance Manager 1325 Sycamore Ave, Suite A Vista, California 92081
Re: K171588
Trade/Device Name: NuBODY Skin Toning Device Regulation Number: 21 CFR 882.5890 Regulation Name: Transcutaneous Electrical Nerve Stimulator for Pain Relief Regulatory Class: Class II Product Code: NFO Dated: May 31, 2017 Received: May 31, 2017
Dear Donald Ellis:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR
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Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical devicerelated adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to
http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely.
# Michael J. Hoffmann -S
for
Carlos L. Peña, PhD, MS Director Division of Neurological and Physical Medicine Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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### Indications for Use
510(k) Number (if known) K171588
Device Name NuBODY Skin Toning Device
Indications for Use (Describe)
NuBODY Skin Toning Device is intended for body skin stimulation and is indicated for over-the-counter cosmetic use.
Type of Use (Select one or both, as applicable)
Prescription Use (Part 21 CFR 801 Subpart D)
|X | Over-The-Counter Use (21 CFR 801 Subpart C)
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Image /page/3/Picture/0 description: The image shows the logo for NuFace. The logo is in gray and features the brand name in a simple, sans-serif font. The "U" in NuFace has a horizontal line above it.
### SECTION 5. 510(K) SUMMARY
DATE PREPARED: July 27, 2017
### 510(K) SUBMITTER/OWNER
Carol Cole Company 1325 Sycamore Ave, Suite A Vista, CA 92081, USA
### CONTACT INFORMATION:
Donald Ellis, Requlatory Affairs/Quality Assurance Phone: (760) 509-1264 Facsimile: (760) 650-3667 DELLIS@mynuface.com Email:
### DEVICE NAMES
Device Trade/ Proprietary Name: Device Common or Usual Name: Classification Name:
NuBODY Skin Toning Device NuBODY stimulator, transcutaneous electrical, aesthetic purposes 21 CFR 882.5890 NFO
Requlation Number: Product Code:
### PREDICATE DEVICES
The legally marketed predicate device to which the Carol Cole Company is claiming equivalence for over-the-counter use:
| 510(k) Number: | K103472 |
|----------------|-------------------------------|
| Manufacturer: | Carol Cole Company dba NuFACE |
| Trade Name: | NuFACE® Plus |
| Product Code: | NFO |
### DEVICE DESCRIPTION
NuBODY Skin Toning Device is intended for body skin stimulation and is indicated for over-the-counter cosmetic use. Four (4) spherical electrodes, fixed on the NuBODY device main body, deliver low level electrical impulses (microcurrent) to targeted locations on the body.
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# NUFACE
1325 Sycamore Avenue, Suite A, Vista, CA 92081
### INTENDED USE
NuBODY Skin Toning Device is intended for body skin stimulation and is indicated for over-the-counter cosmetic use.
### Technological Characteristics
The proposed NuBODY device has the same, or similar, technological characteristics as the NuFACE Plus predicate device. The differences do not alter the clinical utility of our proposed NuBODY device relative to the cleared NuFACE Plus predicate device listed below.
- NuBODY device is powered by a rechargeable, nonreplaceable, battery i) which uses a lithium ion chemistry.
- Microcurrent is discharged through four (4) smooth, chrome-plated, ii) spherical electrodes.
- iii) Comparable to the NuFACE Plus predicate device, the NuBODY device generates continuous alternating microcurrent delivered in a burst of positive pulses followed by a burst of negative pulses.
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Image /page/5/Picture/0 description: The image shows the word "NUFACE" in a sans-serif font. The letters are gray and evenly spaced. There is a horizontal line above the "U" in "NUFACE", and a small circle above and to the right of the "E".
# Predicate Comparison
# Table1: General Comparison Table
| DEVICE DESCRIPTIONS | NuBODY<br>(NEW DEVICE) | NuFACE Plus Device<br>(PREDICATE) |
|-------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 1. 510(k) Number | K171588 | K103472 |
| 2. Regulation Number | 21 C.F.R. § 882.5890 | 21 C.F.R. § 882.5890 |
| 3. Regulation Name | Transcutaneous electrical nerve stimulator for pain relief | Transcutaneous electrical nerve stimulator for pain relief |
| 4. Regulatory Class | Class II | Class II |
| 5. Device Classification Name | Stimulator, Transcutaneous Electrical, Aesthetic Purposes | Stimulator, Transcutaneous Electrical, Aesthetic Purposes |
| 6. Product Code | NFO | NFO |
| 7. Regulation Medical Specialty | Neurology | Neurology |
| 8. Intended Use | NuBODY Skin Toning Device is intended for body skin stimulation and is indicated for over-the-counter cosmetic use. | NuFACE Plus Facial Toning Device is intended for facial stimulation and is indicated for over the counter cosmetic use. |
| 9. Indications for Use | Over-the-Counter Cosmetic Use | Over-the-Counter Cosmetic Use |
| 10. Anatomic Sites | Areas of the body other than the face | Face |
| 11. Technological Characteristics | The NuBODY Skin Toning Device is a body skin toning device. Its outer case is injection molded thermoplastic resin. The output contacts consist of chrome-plated spherical electrodes. The NuBODY device is powered by a rechargeable lithium ion battery. NuBODY device produces microcurrent that is discharged through four fixed, smooth spherical | The NuFACE Plus is a facial toning device. Its outer case is injection molded thermoplastic resin. The output contacts consist of chrome-plated spheres. The device is powered by a rechargeable lithium ion battery and produces a microcurrent that is discharged through two fixed, smooth electrode spheres. To turn the device on the on/off |
| DEVICE DESCRIPTIONS | NuBODY<br>(NEW DEVICE) | NUFACE PLUS DEVICE<br>(PREDICATE) |
| | electrodes. To turn the<br>NuBODY device on, the<br>on/off button is pressed.<br>Ascending tonal beeps<br>indicate the NuBODY device<br>is on. One to three LED lights<br>illuminate indicating the<br>output intensity level and the<br>unit is ready for use. The four<br>spheres gently glide over the<br>skin to deliver low-level<br>electrical impulses to<br>targeted locations on the<br>body. The NuBODY device<br>spheres are designed for<br>optimal contact with body<br>skin. The NuBODY device<br>delivers microcurrent as a<br>constant monophasic<br>square wave comprised of a<br>burst of (10) positive pulses<br>followed by a burst of (10)<br>negative pulses. The<br>microcurrent output<br>continuously alternates<br>between the positive and<br>negative spherical<br>electrodes, and allows the<br>user to adjust the output for<br>a personalized comfort level.<br>The NuBODY device requires<br>the use of a conductive gel.<br>To promote proper use and<br>provide feedback to the<br>user, the NuBODY device<br>beeps to cue the user to<br>relocate the NuBODY device<br>approximately every 5<br>seconds. | button is pressed.<br>Ascending tonal beeps<br>indicate the device is on.<br>One to five red LED lights<br>illuminate indicating the<br>output intensity level and<br>the unit is ready for use.<br>Users then follow the<br>instructions for use. The<br>two spheres gently glide<br>over the skin to deliver<br>low-level electrical<br>impulses to targeted<br>locations on the face. The<br>NuFACE Plus spheres are<br>designed for optimal<br>contact with the face.<br>The NuFACE Plus device<br>delivers microcurrent as a<br>constant monophasic<br>square wave comprised<br>of a burst of (10) positive<br>pulses followed by a burst<br>of (10) negative pulses.<br>The microcurrent output<br>continuously alternates<br>between the positive and<br>negative electrode<br>spheres, and allows the<br>user to adjust the output<br>for a personalized comfort<br>level. The NuFACE Plus<br>device requires the use of<br>a conductive gel. To<br>promote proper use and<br>provide feedback to the<br>user, the NuFACE Plus<br>beeps to cue the user to<br>relocate the device<br>approximately every 5<br>seconds. |
| BASIC UNIT<br>CHARACTERISTICS | NuBODY<br>(NEW DEVICE) | NuFACE Plus Device<br>(PREDICATE) |
| 1. 510(k) Number | K171588 | K103472 |
| 2. Device Name,<br>Model | NuBODY Skin Toning<br>Device | NuFACE Plus Facial<br>Toning Device |
| 3. Manufacturer | Carol Cole Company<br>(dba NuFACE) | Carol Cole Company<br>(dba NuFACE) |
| 4. Power Source(s) | Internal rechargeable<br>Lithium ion battery | Internal rechargeable<br>Lithium ion battery |
| a. Method of<br>Line Current<br>Isolation | Type BF | Type BF |
| b. Patient<br>Leakage<br>Current | | |
| 1). Normal<br>condition | N/A - Battery<br>operated | N/A - Battery<br>operated |
| 2). Single<br>fault<br>condition | N/A - Battery<br>operated | N/A - Battery<br>operated |
| 5. External power<br>adapter | NuFACE 5-volt power<br>adapter | NuFACE 7-volt power<br>adapter |
| 6. Number of<br>Output<br>Channels | 1 | 1 |
| a. Synchronous<br>or Alternating | N/A - 1 Output<br>channel | N/A - 1 Output<br>channel |
| b. Method of<br>Channel<br>Isolation | N/A - 1 Output<br>channel | N/A - 1 Output<br>channel |
| 7. Regulated<br>Current or<br>Regulated<br>Voltage | Both | Both |
| 8. Software/<br>Firmware/<br>Microprocessor<br>Control | Yes | Yes |
| 9. Automatic<br>Overload Trip | Not required due to<br>circuit design | Not required due to<br>circuit design |
| BASIC UNIT<br>CHARACTERISTICS | NuBODY<br>(NEW DEVICE)…
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.