K180617 · Y & J Bio Co., Ltd. · OAP · Jun 1, 2018 · Physical Medicine
Device Facts
Record ID
K180617
Device Name
Hair Up
Applicant
Y & J Bio Co., Ltd.
Product Code
OAP · Physical Medicine
Decision Date
Jun 1, 2018
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 890.5500
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The Hair Up is intended to promote hair growth in males with androgenetic alopecia who have Norwood Hamilton Classifications of IIa to V and Fitzpatrick Classification of Skin Phototypes I to IV, and in females with androgenetic alopecia who have Ludwig-Savin Classifications of I-II and Fitzpatrick Classification of Skin Phototypes I to IV.
Device Story
Hair Up is a helmet-based device for promoting hair growth; utilizes 21 red visible laser diodes and 30 red light-emitting diodes (LEDs) to provide coverage to the upper scalp. Device operates via low-level light therapy; system includes an outer helmet and protective inner liner. Features automatic therapy pause if head position is incorrect; signals completion of therapy cycle. Intended for home use by patients. Healthcare providers use the device to treat androgenetic alopecia; benefits include potential hair growth stimulation. Device is identical to previously cleared Hair Up (K172968) with updated indications for use.
Clinical Evidence
Bench testing only. Performance data included measurement of wavelength and average output power. Safety and performance evaluated per IEC 60601-1 (basic safety), IEC 60601-1-2 (EMC), IEC 60825-1 (laser safety), and ISO 10993-5/10 (biocompatibility). Risk management followed ISO 14971 and usability followed IEC 62366.
Technological Characteristics
Helmet-based system; 21 red laser diodes (655 nm) and 30 red LEDs. Input: AC 100V-240V, 50/60Hz, 5V 2A. Standards: IEC 60601-1, IEC 60601-1-2, IEC 60825-1, ISO 10993-5, ISO 10993-10, ISO 14971, IEC 62366. Class II device.
Indications for Use
Indicated for males with androgenetic alopecia (Norwood Hamilton IIa-V) and females with androgenetic alopecia (Ludwig-Savin I-II), all with Fitzpatrick Skin Phototypes I-IV.
Regulatory Classification
Identification
An infrared lamp is a device intended for medical purposes that emits energy at infrared frequencies (approximately 700 nanometers to 50,000 nanometers) to provide topical heating.
Special Controls
*Classification.* Class II (special controls). The device, when it is an infrared therapeutic heating lamp, is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 890.9.
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June 1, 2018
Y&J BIO Co, Ltd., Ms. Mina Joo Assistant Manager BT Solutions, Inc. 91-14 Seolleung-ri #402 Gangnam-gu, Seoul, 06150 Kr
Re: K180617
Trade/Device Name: Hair Up Regulation Number: 21 CFR 890.5500 Regulation Name: Infrared Lamp Regulatory Class: Class II Product Code: OAP Dated: March 6, 2018 Received: March 8, 2018
Dear Mina Joo:
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, 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 Part 807); labeling (21 CFR Part 801); medical device reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820);
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and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
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 comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/MedicalDevices/DeviceRegulationandGuidance/) and CDRH Learn (http://www.fda.gov/Training/CDRHLearn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (http://www.fda.gov/DICE) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
# Jennifer R. Stevenson -S3
For Binita S. Ashar, M.D., M.B.A., F.A.C.S. Director Division of Surgical Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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## Indications for Use
510(k) Number (if known) K180617
Device Name Hair Up
#### Indications for Use (Describe)
The Hair Up is intended to promote hair growth in males with androgenetic alopecia who have Norwood Hamilton Classifications of IIa to V and Fitzpatrick Classification of Skin Phototypes I to IV, and in females with androgenetic alopecia who have Ludwig-Savin Classifications of I-II and Fitzpatrick Classification of Skin Phototypes I to IV.
| 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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## 5. 510(k) Summary
## 1. General Information
| Applicant/Submitter: | Y&J BIO Co., Ltd. |
|-------------------------|--------------------------------------------------------------------------------------------------------------------------------------|
| Address: | No. C-413, Munjeong Hyundai Knowledge Center 1<br>7, Beobwon-ro 11-gil, Songpa-gu, Seoul,<br>Republic of Korea<br>Tel) +82-3400-0325 |
| Contact Person: | Mina Joo, BT Solutions, Inc. |
| Address: | Unit 402, 91-14 Seolleung-ro, Seoul, Republic of<br>Korea<br>Tel) +82.2.538.9140<br>Email) smanager@btsolutions.co.kr |
| Preparation Date: | June-1-2018 |
| 2. Device Name and Code | |
| Device Trade Name: | Hair Up |
| Common Name: | Lamp, non-heating, for promotion of hair growth |
| Classification Name: | Infared lamp |
| Product Code: | OAP |
| Regulation Number: | 890.5500 |
| Classification: | Class II |
| Review Panel: | General & Plastic Surgery (ODE) |
## 3. Predicate Devices
Hair Up is substantially equivalent to the following device Table 5.1 Primary Predicate device
| Applicant | Device Name | 510(k) Number |
|--------------------|-----------------------------|---------------|
| Apira Science Inc. | iGrow-II Hair Growth System | K140931 |
| Applicant | Device Name | 510(k) Number |
|----------------------------------|-----------------------------|---------------|
| Apira Science Inc. | iGrow-II Hair Growth System | K141567 |
| Slinph Technologies<br>Co., Ltd. | iHelmet Hair Growth System | K162782 |
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#### Hair Up 510(k) Summary
#### 4. Device Description
The Hair Up is basically an identical device with the 510(k)-cleared device Hair Up (K172968). A new 510(k) clearance is applied this time with a new indications for use (IFU).
Subject device, Hair up and its primary predicate device consist of 21 red visible laser diodes (LDs) and 30 red light emitting diodes (LEDs) configured within an outer helmet and protective inner liner. The use of LDs and LEDs provides full coverage of the upper 1/3 of the head which is commonly covered with stylized hair. The system will automatically pause therapy until the correct head position is re-established. At the end of the therapy cycle, the subject device Hair Up signals that therapy is complete and the device is ready to be powered down.
#### 5. Indications / Intended Use
The Hair Up is intended to promote hair growth in males with androgenetic alopecia who have Norwood Hamilton Classifications of IIa to V and Fitzpatrick Classification of Skin Phototypes I to IV, and in females with androgenetic alopecia who have Ludwig-Savin Classifications of I-II and Fitzpatrick Classification of Skin Phototypes I to IV.
#### 6. Technical Characteristics in Comparison to Predicate Devices
| | Primary Predicate Device | Reference Device 1 | Reference Device 2 | Proposed Device |
|-----------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 510(K) Number | K140931 | K141567 | K162782 | Not Available |
| Manufacturer | Apira Science, Inc. | Apira Science, Inc. | Slinph Technologies Co., Ltd. | Y&J BIO Co., Ltd. |
| Device Name | iGrow-II Hair Growth System | iGrow-II Hair Growth System | iHelmet Hair Growth System | Hair Up |
| Clearance Date: | December 5, 2014 | August 21, 2014 | April 4, 2017 | N/A |
| Classification / Regulation | Class 2 / 890.5500 | Class 2 / 890.5500 | Class 2 / 890.5500 | Class 2 / 890.5500 |
| Product Code | OAP | OAP | OAP | OAP |
| Intended Use | The iGrow-II Hair Growth System is indicated to promote hair growth in females with androgenetic alopecia who have Ludwig-Savin Classifications of I-II and Fitzpatrick Classification of Skin Phototypes I to IV. | The iGrow-II Hair Growth System is indicated to promote hair growth in males with androgenetic alopecia who have Norwood Hamilton Classifications of IIa to V and Fitzpatrick Classification of Skin Phototypes I to IV. | iHelmet Hair Growth System (Model: LTD200S) is indicated to promote hair growth in females with androgenetic alopecia who have Ludwig-Savin Classifications I - II, in males with androgenetic alopecia who have Norwood Hamilton | The Hair Up is intended to promote hair growth in males with androgenetic alopecia who have Norwood Hamilton Classifications of IIa to V and Fitzpatrick Classification of Skin Phototypes I to IV, and in females with androgenetic alopecia who have Ludwig-Savin Classifications |
Hair Up is substantially equivalent to the following legally marketed predicate devices
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#### Hair Up 510(k) Summary
| Mode of Operation | Low-level laser diodes and light emitting diodes | Low-level laser diodes and light emitting diodes | Low-level laser diodes and light emitting diodes | Low-level laser diodes and light emitting diodes |
|-------------------------|------------------------------------------------------------------------------|------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------|
| Wavelength | 655 nm | 655 nm | $650 nm\pm10 nm$ | 655 nm |
| Electrical Requirements | Input: AC 100V ~ 240V (free voltage)<br>Frequency: 50Hz/60Hz<br>Power: 5V 2A | Input: AC 100V ~ 240V (free voltage)<br>Frequency: 50Hz/60Hz<br>Power: 5V 2A | Input: DC 5V, 2A, USB charger;<br>Internal lithium battery<br>Battery Voltage 3.7V<br>Battery Capacity 3000mAh , 11.1Wh | Input: AC 100V ~ 240V (free voltage)<br>Frequency: 50Hz/60Hz<br>Power: 5V 2A |
| How to use | Helmet system | Helmet system | Helmet system | Helmet system |
| Treatment time | 20-25 min | 20-25 min | 20-35 min | 20-25 min |
| | | | Classifications IIa - V and for both, Fitzpatrick Classification of Skin Phototypes of I - IV. | of I-II and Fitzpatrick Classification of Skin Phototypes I to IV. |
#### Reference Devices: 1. Apira Science, Inc's iGrow-II Hair Growth System (K141567)*
*This reference device is referred, of which the technical aspects such as number of diodes, treatment time and intended use for males are same to those of the Hair Up.
- 2. Slinph Technologies Co., Ltd.'s iHelmet Hair Growth System (K162782) **
**This reference device is referred, of which the intended use for both males and females is same, the fluence and irradiance are comparable to those of the Hair Up.
### 6. Performance Data
Non-clinical tests: Measurement of wavelength and average output power, of treatment were performed. Testing conducted on the Hair up shows that it refers to the relevant mandatory performance standards for laser products 21 CFR 1040.10 and 1040.11. Other performance, such as basic safety, etc, were tested using following consensus standards:
- -Basic safety and essential performance of the Hair Up is tested and evaluated according to IEC 60601-1:2005.
- Effect to the device by electromagnetic disturbances were tested and evaluated according to the FDA-recognized consensus standard, IEC 60601-1-2:2014.
- -Safety of laser products is evaluated according to FDA-recognized consensus standard, IEC 60825-1: 2014.
- Biological evaluation of medical devices is tested and evaluated according to ISO 10993--5: 2009 and ISO 10993-10:2010.
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#### Hair Up
#### 510(k) Summary
- Risk management was recorded by referring to ISO 14971:2007. -
- -Usability was documented referring to IEC 62366.
### 7. Conclusions
The technological characteristics of the subject device Hair Up are comparable to those of the predicates for comparable indications for use. Thus, subject device Hair Up is concluded to be substantially equivalent to the predicates.
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.