Low-Level Laser Therapy for Hair Follicle Stimulation
85 patents in this list
Updated:
Low-level laser therapy (LLLT) for hair restoration operates within precise optical parameters - typically employing wavelengths between 650-780nm at power densities below 5mW/cm². These specifications target the mitochondrial cytochrome c oxidase in hair follicle cells while remaining below the thermal damage threshold for surrounding tissue.
The core engineering challenge lies in delivering consistent, therapeutic light doses to follicular targets across varying scalp geometries while maintaining both patient comfort and treatment efficacy.
This page brings together solutions from recent research—including dual-wavelength targeting systems, precision-controlled laser combs, cross-arranged light distribution patterns, and integrated cooling mechanisms. These and other approaches focus on optimizing light delivery while ensuring practical, reliable operation in both clinical and home-use settings.
1. Laser Energy Hair Growth Lamp with Selective Follicle Targeting and Specific Wavelength Control
Guangzhou Shipan Electronic Technology Co., Ltd., GUANGZHOU SPON ELECTRIC TECHNOLOGY CO LTD, 2024
A hair growth treatment lamp that uses laser energy to stimulate hair growth by selectively targeting the hair follicles. The lamp employs a specific wavelength of laser that matches the natural hair growth temperature, promoting hair growth while minimizing damage to surrounding tissue. The device is designed to deliver controlled, targeted laser energy to the scalp, creating a localized environment conducive to hair growth.
2. Dual-Wavelength Laser System with Integrated Cooling and Disinfection for Follicle Stimulation
CENTRAL HOSPITAL OF DALIAN UNIVERSITY OF TECHNOLOGY, 2024
Dual-wavelength laser system for hair loss treatment that uses lasers at two specific red wavelengths (650nm and 780nm) to stimulate hair follicles at different depths. The system has a placement seat with an operating table, laser arm, disinfectant storage box, and refrigerator. The laser device has a dual-wavelength laser diode, disinfectant nozzle, and air delivery pipes to spray iodine between treatments. It also has refrigerated air delivery to keep the treatment area cool.
3. Method for Hair Follicle Stimulation Using Adjustable Low-Energy Laser Integrated in Comb with Controlled Exposure
FOSHAN ASHMORE NETWORK TECHNOLOGY CO LTD, 2023
A method for treating baldness using low-energy laser therapy that enhances hair growth through targeted stimulation of hair follicles. The method employs a low-energy laser device with adjustable power density and laser beam height, allowing precise control over the treatment area and intensity. The device is integrated with a specialized comb that incorporates the laser technology, enabling targeted hair stimulation through the teeth. The comb's unique design enables controlled laser exposure while maintaining scalp coverage, making it a novel approach for promoting hair growth through low-energy laser therapy.
4. Laser Hair Growth Device with Annular Circuit Boards and Central Laser Launcher
SENZENLESS COLTON ELECTRICAL APPLIANCES CO LTD, 2023
Independent light source stabilized intelligent laser hair growth device with a unique annular circuit arrangement. The device features a casing with an open cavity that houses the laser system, comprising a central laser launcher and two annular circuit boards. The circuit boards are installed in a ring configuration around the central laser, with each board having its own independent driving circuit. This configuration enables the laser system to operate independently of each board, with each board capable of powering the entire system. The device incorporates a sensing system that monitors the entire system, allowing for continuous operation even in the event of board failure.
5. Photostimulation Device Emitting Violet Light with Specific Flickering Frequencies in the 350-400 nm Range
TSUBOTA LAB INC, 2023
Improving physiological conditions through photostimulation using violet light at specific flickering frequencies. The method employs a light source that emits violet light with a wavelength of 350-400 nm, specifically targeting the 380 nm range. The light source is controlled to provide a constant or blinking frequency, with the flickering frequency ranging from 0 Hz to 150 Hz. The device can be worn as spectacles, mounted in front of or near the face, or used in portable devices. The controlled light exposure enables targeted photostimulation of specific physiological conditions, including dermatitis, hair loss, and vision impairment, while minimizing discomfort.
6. Hair Growth Helmet with Cross-Arranged Laser Units for Elliptical Light Spot Distribution
Shenzhen Zhilian Zhongkang Technology Co., Ltd., SHENZHEN ZHILIAN ZHONGKANG TECHNOLOGY CO LTD, 2023
A hair growth helmet that addresses the limitations of existing laser hair growth treatments by providing a more uniform and targeted light distribution pattern. The helmet comprises a hat-shaped shell with multiple laser generating units arranged in a cross arrangement to create a unique elliptical light spot pattern. This design enables the treatment of the scalp from multiple angles simultaneously, improving the treatment outcome compared to traditional in-line laser spot arrangements. The helmet's design incorporates a closed loop around the head to ensure comprehensive coverage, while the cross arrangement pattern ensures even distribution across the scalp.
7. Transparent Massage Cap with Laser-Activated Microneedle Pad and Integrated Capillary Delivery System
Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital, SHANGHAI NINTH PEOPLES HOSPITAL SHANGHAI JIAOTONG UNIVERSITY SCHOOL OF MEDICINE, 2023
A massage cap for promoting hair growth through targeted scalp stimulation. The cap features a transparent, laser-activated massage pad with evenly distributed microneedles. The pad is designed with a capillary hole that connects to a reservoir, allowing for controlled delivery of topical treatments. The cap's transparent design enables visualization of the treatment process, while the laser-activated pad provides precise stimulation to target hair follicles. The cap's design enables efficient treatment of hair loss by targeting the hair growth cycle rather than just treating the scalp.
8. Headband with Integrated Low-Level Laser Therapy Device and Secure Dual-Ring Structure
XIAN OE PHOTOELECTRIC TECHNOLOGY CO LTD, 2023
A hair growth headband that combines a low-level laser therapy (LLLT) device with a wearable hair growth system. The headband features a unique design where the outer ring determines the headband shape while the inner ring is shorter than half the outer ring. This configuration ensures the hair growth device remains securely attached to the headband, eliminating the need for external support. The headband also incorporates earphones to prevent loss during use. The LLLT device emits red light at 650nm with a power output of 5mW, promoting hair growth and hair follicle regeneration.
9. Laser Irradiation Method for Hair Follicle Stimulation Using 1565 nm Wavelength
DIAKIV ANNA ROMANOVNA, 2023
Laser treatment to stimulate hair growth, regenerate damaged hair, prevent hair loss, and increase hair density. The method involves laser irradiation of hair follicles using a specific laser wavelength (1565 nm) to promote hair growth and improve hair quality. The laser treatment is done on areas of the scalp with thinning or missing hair to stimulate follicles and restore growth.
10. Laser Hair Growth Instrument with Adjustable Intensity via Slidable Light-Shielding Plate Assembly
Bella Medical Technology Co., Ltd., 2022
A laser hair growth instrument with adjustable light intensity that enables precise control over the laser treatment parameters. The instrument features a mounting plate with multiple laser ports, a light-shielding assembly that seals the laser port openings, and a light-shielding plate that can be slidably connected to the mounting plate. This assembly allows users to adjust the laser intensity by rotating the light-shielding plate, enabling customized treatment settings for different hair growth stages and scalp conditions.
11. Head-Mounted Laser Device with Alternating Planar Light-Emitting Array and Independent Functional Areas on Film-Like Substrate
GreenJade Technology Co., Ltd., LVJIATU TECHNOLOGY CO LTD, 2022
A head-mounted laser hair growth device with improved treatment efficacy and treatment duration compared to existing cap-based systems. The device features a planar array of light-emitting units arranged in an alternately distributed manner on the inner wall of the main housing. Each unit emits light at a specific wavelength, and the device includes a control module that synchronizes the light emission to stimulate hair growth. The device incorporates a film-like substrate with independently positioned functional areas, each corresponding to different hair loss severity levels, to optimize treatment targeting. The device also incorporates a battery-powered control module and a storage compartment for the treatment device.
12. Head-Worn Dual-Mode Laser Device with Focused Acupuncture and Diffused Scalp Irradiation Assemblies
SHENZHEN HENGTIAN WEIYAN TECH CO LTD, 2022
Dual-mode laser hair growth device that combines focused laser acupuncture and diffused laser therapy to improve effectiveness for treating hair loss. The device has a head-worn body with separate assemblies emitting a focused laser for acupuncture and a diffused laser for scalp irradiation. This allows simultaneous targeted stimulation of acupuncture points and whole-head hair follicle activation for enhanced hair growth treatment compared to single-mode lasers.
13. Head-Mounted Laser Hair Growth Device with Diode-Embedded Dome and Adaptive Output Control System
Jiangsu Bangshi Medical Technology Co., Ltd., JIANGSU BANGSHI MEDICAL TECHNOLOGY CO LTD, 2022
A head-mounted laser hair growth device that enhances hair growth through precise energy delivery to the scalp. The device features a laser dome cover with strategically placed diodes that emit low-level laser energy, promoting hair follicle stimulation and blood circulation. The device incorporates a safety sensor to prevent over-activation, and a controller that adjusts the laser output based on sensor readings. The device is designed for comfortable, ergonomic wear, with a secure clip system that securely attaches to the user's hair.
14. Hair Growth Instrument with Integrated Laser and Centralized Liquid Medicine Delivery System
De Moivre Technology Co., Ltd., 2022
A hair growth instrument that combines a laser-based treatment system with a liquid medicine delivery system. The instrument features a transparent cover that houses both the laser diodes and the medicine delivery system. The cover is connected to a central axis through a single opening, eliminating the need for multiple openings in the outer casing. The medicine delivery system is integrated into the central axis, with the laser diodes positioned on the outer casing. This design simplifies the assembly and disassembly process while maintaining the treatment and delivery capabilities of the laser system.
15. Hair Growth Device with Integrated Laser and Massage Components in Layered Frame Design
SHANGHAI JIANGYU MEDICAL TECHNOLOGY CO LTD, Shanghai Jiangyu Medical Technology Co., Ltd., 2022
A multifunctional hair growth device that combines laser and massage therapy for hair growth. The device integrates a laser component with a massage component, where the laser emits specific wavelengths to stimulate hair follicles while the massage system applies gentle pressure. The device features a frame with an outer shell, airbag layer, and functional layer, where the laser and massage components are positioned within the functional layer. This integrated design enables automatic operation, precise control over treatment parameters, and a stable therapeutic effect through both laser and massage stimulation.
16. Laser Hair Growth Device with Rotating Laser Head and Adjustable Treatment Parameters
KUNSHAN BEILA OPTICAL TECHNOLOGY CO LTD, Kunshan Bella Optical Technology Co., Ltd., 2022
A laser hair growth device with adjustable treatment parameters that enables personalized hair growth therapy. The device features a fixed head with a rotating laser head that can be precisely controlled to target specific areas of the scalp. The laser head is connected to a dedicated treatment module that houses the laser diodes, while the treatment module is mounted on a fixed mounting plate. The device's control system includes a dedicated PCB for the treatment module and a fixed mounting plate for the control electronics. This configuration allows for precise control over laser energy delivery and treatment parameters, enabling customized hair growth treatments for individual patients.
17. Laser Hair Growth Cap with Conductivity-Sensitive Inductive Charging and Selective Laser Activation
DONGGUAN HUDA ELECTRONICS CO LTD, Dongguan Huda Electronics Co., Ltd., 2022
A laser hair growth cap that utilizes a unique charging mechanism to deliver precise, controlled laser energy to the scalp. The cap features a charging assembly that connects to a charging interface, allowing the device to power its laser system. The charging interface is connected to an inductor that senses the scalp's electrical conductivity, enabling selective activation of laser groups. This intelligent charging system enables precise control over laser energy delivery, ensuring optimal hair growth stimulation while minimizing energy waste.
18. Phototherapy Hair Growth Device with Optical Fiber System for Targeted Red Light Delivery
GUAN ORGANIC LIGHT TECHNOLOGY CO LTD, 2021
A phototherapy hair growth device that delivers targeted red light to the scalp without shaving, enabling hair growth therapy through optical fiber guidance. The device incorporates a precisely engineered optical fiber system with controlled diameter and length, along with a Shore hardness limit of 90-100, to ensure safe penetration through hair without scalp irritation. The device can be applied in various forms, including a hair growth cap, a hair growth strip, or a hair growth system with integrated fibers.
19. Modular Laser Hair Growth Device with Detachable Scalp Stimulation and Anti-Inflammatory Treatment Units
Jiangnan University, JIANGNAN UNIVERSITY, 2021
A laser hair growth device with detachable modules for personalized treatment. The device features a support frame that securely mounts laser modules for the forehead, middle, and rear hair growth areas. Each module contains a laser unit with separate components for scalp stimulation (low-energy soft laser) and anti-inflammatory treatment (blue laser). Users can detach and replace the modules as needed, allowing for customized hair growth treatments tailored to individual needs.
20. Multi-Beam Laser Applicator with Aperture-Based Beam Splitting and Distribution System
FOTONA D O O, 2021
Applicator for laser-based hair treatment that enables targeted, precise delivery of laser energy to the scalp. The applicator comprises a multi-beam system with interposed apertures that split the laser beam into two partial beams. Each beam is directed through a separate aperture, allowing precise control over the laser distribution across the scalp. This multi-beam configuration enables the creation of complex laser patterns that can target specific areas of the scalp while minimizing treatment overlap. The applicator can be used in conjunction with laser devices to deliver targeted laser energy for hair growth, scalp conditions, and hair density improvement.
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