LG Pra.L Medihair Review: Korea's Best-Selling Hair Device

Last updated: April 2026

Affiliate Disclosure: We may earn a commission when you purchase through our links. This does not affect our editorial independence.

Quick Answer

The LG Pra.L Medihair uses Low-Level Laser Therapy (LLLT) with 146 lasers and 104 LEDs to stimulate hair follicles, a technology that has been recognized since 2007 with the first FDA-approved laser hair loss treatment device.
Clinical trials support its effectiveness, with one user seeing new hair growth after 1.5 months of consistent use, noting many short, new hairs along their hairline.
It offers three care modes, including a 27-minute 'Total Care' mode, and is recommended for use every other day, not daily or two consecutive days.
The device typically costs around ₩1.2 million to ₩1.5 million (approximately $900-$1100 USD), with a stand-alone model (HGN2V) available without a charging cradle to make it more accessible.

The LG Pra.L Medihair is a home-use hair loss treatment device from LG Electronics, designed to address various concerns from thinning hair to receding hairlines. It leverages Low-Level Laser Therapy (LLLT), a technology with roots dating back to a 1967 discovery by Hungarian scholar Endre Mester, who observed hair growth in mice exposed to low-power lasers during skin cancer experiments. This device incorporates 146 lasers and 104 LEDs, totaling 250 light sources, all focused on stimulating hair follicle cells. Launched in October 2020, its development spanned over four years, with extensive testing to ensure both safety and efficacy. Early users have reported positive outcomes, such as new hair growth within 1.5 months and increased hair thickness after 5 months, despite the initial investment cost, which can range from over ₩1.2 million to ₩1.5 million. The Medihair is intended for consistent, every-other-day use, offering various treatment modes, including a 27-minute 'Total Care' option, to help manage and prevent hair loss progression.

What is the LG Pra.L Medihair?

The LG Pra.L Medihair is a specialized home-use hair loss treatment device developed by LG Electronics, designed to help individuals manage and address hair thinning and loss from the comfort of their homes. This innovative product integrates advanced light therapy to stimulate hair follicles, offering a convenient alternative to frequent clinic visits or oral medications. Its development was a meticulous process, taking over four years from initial planning to its market release in October 2020, highlighting LG's commitment to verifying its stability and effectiveness.

The Origins of LLLT Technology

The foundational principle behind the Medihair, Low-Level Laser Therapy (LLLT), traces its origins back almost 60 years to 1967. It was then that Hungarian scholar Endre Mester, while conducting animal experiments related to skin cancer, made a serendipitous discovery. He observed that mice exposed to low-output lasers exhibited hair growth. This unexpected finding laid the groundwork for future research into using low-level light for therapeutic purposes. Decades later, in 2007, the first laser hair loss treatment device received approval from the US Food and Drug Administration (FDA), solidifying LLLT as a prominent and accepted method within the hair loss treatment market. The LG Pra.L Medihair builds upon this established technology, bringing it into a consumer-friendly format.

Device Specifications and Design

Inside the helmet-like structure of the LG Pra.L Medihair, there are a total of 250 light sources. These comprise 146 individual lasers and 104 light-emitting diodes (LEDs). This combination of light sources is strategically placed to ensure comprehensive coverage of the scalp, aiming to stimulate hair follicle cells across different areas. The device's design is not merely functional but also ergonomic. It is shaped like a helmet, and users are even advised in the instruction manual not to use it as a safety helmet, a detail that one reviewer found quite amusing (translated from Korean) LG Pra.L Medihair 1.5-month user review. This design choice makes it easy to wear and use during the treatment sessions. The device connects to a separate controller, which allows users to power it on and select their desired care mode.

Market Positioning and Medical Device Status

LG Electronics heavily promotes the Pra.L Medihair as a medical device. This classification is significant as it implies a higher level of scrutiny regarding its claims and safety. The company asserts that its effectiveness has been substantiated through clinical trials. While some consumers might be skeptical of such claims, especially for a high-value home appliance, the developer of Medihair stated that the product underwent extensive testing to determine optimal light source numbers and usage durations. This rigorous development process was reportedly "several times more intensive" than that for LG Pra.L LED masks, underscoring the complexity and sensitivity of hair loss treatment. The goal, according to the developer, was to create a product that could offer "new hope and lost happiness" to many individuals struggling with hair loss (translated from Korean) Chosun Ilbo interview with LG Medihair developer. This emphasis on clinical validation and careful design positions the Medihair as a serious contender in the at-home hair loss treatment market.

How Does Medihair Work and What Modes Does It Offer?

The LG Pra.L Medihair operates on the principle of Low-Level Laser Therapy (LLLT), a non-invasive treatment that uses specific wavelengths of light to stimulate cellular activity within hair follicles. When the low-level laser and LED light sources within the helmet are emitted onto the scalp, they penetrate the skin to reach the dormant or weakened hair follicles. This light energy is believed to stimulate and activate these cells, promoting a healthier environment for hair growth and potentially extending the anagen (growth) phase of the hair cycle. The device is designed for consistent, regular use, which is key to seeing potential benefits.

Understanding the LLLT Mechanism

The core mechanism of Medihair involves the targeted delivery of light energy to the scalp. The 146 lasers and 104 LEDs embedded within the helmet work in concert to provide comprehensive coverage. This light energy is absorbed by the cells in the hair follicles, leading to various biological effects. These effects can include increased blood flow to the scalp, which delivers more nutrients and oxygen to the follicles, and enhanced cellular metabolism, which helps the follicles produce stronger, healthier hair strands. The developer of the LG Pra.L Medihair explained that the device works by "stimulating and activating hair follicle cells" to treat hair loss symptoms (translated from Korean) Chosun Ilbo interview with LG Medihair developer. This process aims to revitalize dormant follicles and strengthen existing hair, thereby combating the effects of various types of hair loss, such as M-shaped receding hairlines or general thinning.

Available Care Modes and Personalization

The LG Pra.L Medihair offers multiple care modes, allowing users to tailor their treatment based on their specific needs. Upon connecting the helmet to its controller and pressing the power button, users can select from these options. A common and comprehensive choice is the 'Total Care' mode, which runs for a duration of 27 minutes. This mode is designed to provide broad coverage and stimulation across the entire scalp. Beyond manual selection, the device incorporates intelligent sensors that can measure the user's hair condition. Based on this assessment, it recommends a personalized care course. For instance, one user shared their surprise at being diagnosed with 'Front Care,' indicating a focus on the front hairline, while a friend received a 'Top Care' diagnosis for the crown area. This diagnostic capability instilled a high degree of trust in the device's ability to accurately assess individual hair loss patterns. The user found this a reassuring feature, noting that the device's ability to diagnose specific needs "dramatically increased its reliability" (translated from Korean) LG Pra.L Medihair 1.5-month user review. This personalized approach helps ensure that the treatment is as effective as possible for each individual.

Recommended Usage and Routine Integration

Consistent and correct usage is emphasized for the LG Pra.L Medihair. The device is not recommended for daily use or for two consecutive days. Instead, the guideline suggests using it every other day. One user meticulously planned their schedule, marking their calendar to ensure they adhered to this every-other-day routine, consistently using the device from September 3rd to October 16th, only missing one day due to travel. For those who used the Total Care mode, the 27-minute treatment time can be integrated into daily activities. Reviewers mentioned using this time efficiently, such as folding laundry or catching up on news via a tablet. This makes the routine manageable and less of a chore, promoting long-term adherence. Another user maintained a schedule of two to three sessions per week, sometimes extending to four sessions in a week by incorporating a two-day break between uses. This flexibility allows users to fit the treatment into their lifestyle while still adhering to the recommended frequency for optimal results. The importance of reading the instruction manual is also highlighted due to the device's high cost and specific usage guidelines.

What Are Real User Experiences with Medihair?

Real user experiences with the LG Pra.L Medihair provide valuable insights into its effectiveness and practical integration into daily life. Many users approach the device with a mix of hope and skepticism, given its significant price tag and the pervasive nature of hair loss concerns. However, several accounts detail noticeable improvements, often after a few months of consistent use. These personal stories underscore the potential of the device when used as directed and integrated into a broader hair care strategy.

Documented Hair Growth and Thickening

One user, who purchased the Medihair after noticing a sudden M-shaped recession in their hairline and receiving confirmation from their hairdresser about thinning hair, reported significant results after 1.5 months of consistent use. They used the device every other day from September 3rd to October 16th. By the end of this period, they observed "a lot of short, fine hairs" (translated from Korean) growing, particularly along their hairline. While many of these new hairs were white, which the user found somewhat embarrassing, the sheer volume of new growth was a clear indicator of the device's effect. They noted that their hairline, which had receded from the prominent blood vessels on their forehead, had visibly moved closer to these vessels due to the emergence of these new, short hairs. This firsthand account offers compelling evidence of the device's ability to stimulate new hair growth in a relatively short period LG Pra.L Medihair 1.5-month user review.

Another user, who had experienced severe M-shaped hair loss and a visibly red, irritated scalp, shared their journey over 5 months of using the LG Pra.L Medihair. They initially bought the device for around ₩1.5 million (approximately $1100 USD) through Coupang Rocket Delivery, noting that the price had slightly decreased since their purchase. This user stated that they "definitely felt better" (translated from Korean) compared to five months prior, observing that their hair felt "more than 20% thicker" (translated from Korean). They specifically mentioned that "hair is coming back to life" (translated from Korean) in areas where hair loss had previously created barren patches, and their hairline had expanded slightly downwards. This long-term perspective suggests that while initial growth might be seen quickly, more substantial improvements in hair thickness and density may become evident around the 4-month mark, aligning with the typical hair growth cycle. This user's sentiment was that the time gained by starting early "overcame" the high price of the device LG Pra.L Medihair 5-month user review and unboxing.

Integration with Other Hair Care Routines

It is important to note that many users, including the one who saw new hair growth after 1.5 months, often combine the LG Pra.L Medihair with other hair care routines. This user explicitly stated that they were not using the Medihair in isolation but were simultaneously implementing "various other things," advising others to keep this in mind. This holistic approach is common among individuals actively trying to combat hair loss, as they often layer different treatments and lifestyle changes to maximize results. The Medihair is therefore seen as a significant, high-investment component of a broader strategy rather than a standalone miracle cure. Users typically purchase the device as a personal investment, often citing previous positive experiences with other LG Pra.L products, such as the Pra.L Mask, as a reason for their confidence in the brand. The consistency, ease of use, and reliable after-sales service from a large corporation like LG also contribute to user satisfaction and willingness to invest.

Cost and Accessibility Considerations

The initial price of the LG Pra.L Medihair was a major consideration for many potential buyers. Prices typically ranged from over ₩1.2 million to ₩1.5 million (approximately $900-$1100 USD). This high cost often led to significant deliberation before purchase. One reviewer mentioned that they had always wanted the Medihair but could not justify the price until a new, online-exclusive version, the LG Pra.L HGN2V, was released without the charging cradle. This version offered a lower price point, effectively removing the cost of the cradle, which was noted to be over ₩200,000 (approximately $150 USD). This made the device more accessible and prompted the user to purchase it, despite it still being the most expensive home appliance they had bought that year. Users view this investment as a necessary step in maintaining their appearance and health, especially when compared to the time and cost associated with regular visits to dermatology or hair loss clinics.

Is Medihair a 'Scam' or a Real Solution for Hair Loss?

When the LG Pra.L Medihair was first launched in October 2020, it was met with a spectrum of reactions, ranging from outright skepticism to high expectations. Some questioned its efficacy, wondering if it was a "national scam item" (translated from Korean), while others expressed hope, suggesting that if it truly worked, it deserved a Nobel Prize. This dichotomy reflects the deep-seated frustration and desperation many people feel when dealing with hair loss, a condition that affects millions globally. However, the scientific basis of the device, coupled with developer insights and user testimonials, suggests that it is positioned as a legitimate solution, particularly for early-stage hair loss.

The Science Behind LLLT and Early Intervention

The principle underpinning the LG Pra.L Medihair is Low-Level Laser Therapy (LLLT), a technology with a well-documented history. Its origins date back to 1967 when Hungarian scholar Endre Mester inadvertently discovered that low-output lasers could stimulate hair growth in animal experiments. This laid the groundwork for further research, eventually leading to the US Food and Drug Administration (FDA) approving the first laser hair loss treatment device in 2007. This approval marked a turning point, establishing LLLT as a mainstream and effective treatment method for hair loss. The Medihair leverages this proven technology, incorporating 146 lasers and 104 LEDs to activate hair follicle cells.

Many dermatologists consistently emphasize the critical importance of "early treatment" for hair loss. This is because, as hair loss progresses, hair follicles can become completely lost, significantly reducing the potential effectiveness of any treatment. This expert advice aligns with the Medihair's target demographic: individuals noticing early signs of hair thinning or recession, rather than those with severe, long-standing baldness where follicles may have already atrophied. The developer of the LG Pra.L Medihair spent over four years in planning and development, dedicating significant effort to verifying its safety and efficacy. This extensive testing included determining the optimal number of light sources and the ideal duration of use to maximize results. The developer expressed hope that the product would bring "new hope and lost happiness" to users, acknowledging the significant expectations placed upon it (translated from Korean) Chosun Ilbo interview with LG Medihair developer.

Addressing Public Skepticism and Clinical Validation

Despite initial public skepticism, LG Electronics markets the Pra.L Medihair as a medical device, asserting that its effectiveness has been proven through clinical trials. This claim is crucial for a product in the hair loss category, where many unproven remedies exist. The company's rigorous development process, involving extensive testing, aims to build consumer trust. The developer's direct engagement, as highlighted in a Chosun Ilbo interview, further reinforces the company's confidence in the product's scientific backing. Over 1.06 million Koreans received treatment for hair loss between 2015 and 2020, indicating a significant and growing demand for effective solutions. This widespread concern underscores why products like the Medihair generate such intense interest and scrutiny. For individuals who cannot commit to frequent clinic visits or prefer to avoid oral medications due to health concerns, an at-home LLLT device offers a compelling alternative. While the Medihair may not match the intensity of professional clinical LED treatments, its advantage lies in its accessibility and the ability for consistent, regular use at home. This consistent application over time is often cited as a key factor in achieving noticeable results, allowing users to proactively manage and slow the progression of hair loss.

User Trust and Personal Experience

Ultimately, whether the Medihair is perceived as a "real solution" often comes down to individual experience. One user, who had previous positive experiences with an LG Pra.L mask, cited this satisfaction as a key reason for purchasing the Medihair. They believed in the brand's ability to deliver effective results through consistent use, even if the effects were not immediate or dramatic. This user noted that while a single treatment might not produce "instant glow" (translated from Korean), consistent application over time did yield positive outcomes for their skin, leading them to apply the same logic to the hair device. The reliability of after-sales service from a large company like LG, with convenient battery and cable replacements for their mask over five years, also contributed to their trust in investing in another high-value LG Pra.L product. This personal validation, combined with the scientific principles of LLLT and the emphasis on early intervention, positions the LG Pra.L Medihair as a credible, though significant, investment for those seeking to address hair loss.

What Are the Practicalities of Using the Medihair Device?

Using the LG Pra.L Medihair is designed to be straightforward and integrated into a user's routine, despite its advanced technology and high cost. The practical aspects of the device, from its physical design to its charging and usage instructions, are important considerations for potential users. LG has aimed for a user-friendly experience, acknowledging that consistency is key for hair loss treatments.

Device Components and Setup

The LG Pra.L Medihair comes with several key components: the helmet-shaped device itself, a controller, and a charger adapter. The helmet houses the 146 lasers and 104 LEDs that deliver the therapeutic light. The controller is essential for operating the device; it connects to the Medihair and features a power button, allowing users to turn it on and select their desired treatment mode. Given its high cost, users are strongly advised to read the instruction manual thoroughly before initial use. One reviewer highlighted this, noting that the device's expense naturally prompted them to read the manual, a habit they usually forgo for other products. This detailed reading ensures proper usage, safety, and understanding of the device's features. The setup process is simple: connect the controller to the Medihair, plug in the charger adapter if needed, and press the power button to begin. Some versions of the product, like the HGN2V model, are sold without a charging cradle, which helps reduce the overall cost and makes it more accessible. Users of this model typically store the device in its original box, finding it perfectly functional without the cradle.

Comfort and Ergonomics

Despite its helmet-like appearance, the LG Pra.L Medihair is designed with user comfort in mind. Concerns about the device feeling "suffocating or painful" (translated from Korean) are addressed by adjustable features. The device includes a circular bezel that allows users to customize the fit to their head size. Additionally, internal padding or protective elements can be adjusted to ensure a snug yet comfortable fit. Users have reported that when the protective gear is properly worn, the device is "not at all painful or stuffy" (translated from Korean) LG Pra.L Medihair 5-month user review and unboxing. This ergonomic design is crucial for encouraging consistent use, as discomfort could deter users from completing their recommended treatment sessions. The lightweight nature and balanced design ensure that users can wear it for the full 27-minute treatment duration without significant strain.

Integrating Treatment into Daily Life

The 27-minute duration of the 'Total Care' mode is a specific time commitment that users learn to integrate into their daily routines. Instead of being a passive waiting period, many users find ways to multitask during their treatment. For example, one user mentioned that the 27 minutes is "just enough time" (translated from Korean) to fold laundry and watch the news on a tablet. This approach transforms the treatment time from a chore into a productive interval, making it easier to adhere to the every-other-day usage recommendation. The ability to move around while wearing the device, though some choose to remain stationary, adds to its convenience. This flexibility helps users consistently maintain their treatment schedule, which is vital for seeing long-term results in hair growth and thickness. The ease of incorporating the Medihair into existing routines, rather than requiring a dedicated, separate block of time, enhances its practicality for busy individuals.

Who is the LG Pra.L Medihair For?

The LG Pra.L Medihair is targeted towards a specific demographic of individuals concerned about hair loss, particularly those in the early stages of the condition. It serves as a proactive measure for prevention and a treatment option for mild to moderate hair thinning, offering an accessible, at-home solution for a widespread concern.

Individuals Experiencing Early Signs of Hair Loss

The Medihair is primarily designed for those who are just beginning to notice changes in their hair density or hairline. This includes individuals observing a receding M-shaped hairline, a common sign of male and female pattern baldness. One user, for instance, described how they suddenly noticed their hairline had become distinctly M-shaped, with the sides receding inwards. This observation, combined with a hairdresser's comment about their hair losing its strength and not holding a style as well, confirmed their suspicions of hair loss progression. The hairdresser specifically noted that for women, hair loss often manifests as a receding front hairline or thinning around the part, rather than a significant overall reduction in hair volume. This insight underscores that even individuals who perceive themselves as having thick hair are not immune to these specific patterns of hair loss. The device is also suitable for those whose hair strands are becoming finer and losing their strength, making it harder to style. The developer of the LG Pra.L Medihair, in an interview, emphasized the importance of "early treatment," stating that once hair loss has significantly progressed and hair follicles are completely lost, the effectiveness of any treatment diminishes. This advice directly positions the Medihair as a tool for early intervention, when hair follicles are still viable for stimulation.

Those Seeking Prevention and Maintenance

Beyond treating existing hair loss, the LG Pra.L Medihair is also for individuals who want to prevent further progression of hair loss or maintain their current hair density. Many people recognize that prevention is better than cure, especially when it comes to hair. The device offers a proactive approach for those who are genetically predisposed to hair loss or are experiencing thinning due to factors like stress, age, or nutritional deficiencies. One user, despite initially believing they had abundant hair, recognized the importance of starting management immediately upon noticing signs of recession. They understood that waiting until hair loss becomes severe limits treatment options, often necessitating professional medical intervention. The Medihair provides a consistent, regular care routine that can help slow down the process of hair thinning and maintain the vitality of existing hair follicles. This is particularly appealing to those who acknowledge that "those with abundant hair are the winners" in later life (translated from Korean), and that hair density can even be seen as a "symbol of wealth" (translated from Korean).

Alternatives to Clinic Visits and Oral Medications

For many, the LG Pra.L Medihair offers a practical and convenient alternative to traditional hair loss treatments. Regularly visiting hair loss clinics can be time-consuming and expensive. The device allows users to receive LLLT treatment at home, fitting into their schedule without the need for appointments. One reviewer explicitly stated that they do not visit dermatologists or hair loss clinics due to the time and cost involved, making the Medihair an ideal solution for them. Furthermore, some individuals are hesitant to take oral medications for hair loss due to potential side effects or health concerns. The Medihair, as a non-invasive, light-based therapy, bypasses these issues. It is considered a suitable option for those whose hair loss is not yet severe enough to warrant medication but still requires active management. The convenience and non-pharmacological nature of the device make it an attractive option for a broad range of users seeking effective hair loss management without the commitments or concerns associated with other treatment modalities.

Frequently Asked Questions

How often should I use the LG Pra.L Medihair?

The LG Pra.L Medihair is recommended for use every other day. It is explicitly stated that the device should not be used daily or for two consecutive days. One user meticulously followed this schedule, using the device every other day from September 3rd to October 16th, only missing one session during travel. This consistent, spaced-out usage is designed to optimize the stimulation of hair follicles without over-treatment.

What is the average cost of the LG Pra.L Medihair?

The average cost of the LG Pra.L Medihair typically ranges from over ₩1.2 million to ₩1.5 million (approximately $900-$1100 USD). One user reported purchasing it for around ₩1.5 million. A more accessible model, the HGN2V, is available without a charging cradle, offering a lower price point by removing the cost of the cradle, which can be over ₩200,000.

How long does it take to see results from using Medihair?

Users have reported seeing results within a few months of consistent use. One user noticed "a lot of short, fine hairs" (translated from Korean) growing along their hairline after just 1.5 months (from September 3rd to October 16th). Another user observed significant improvement in hair thickness, feeling their hair was "more than 20% thicker" (translated from Korean), after 5 months of consistent use, with noticeable changes starting around the 4-month mark.

Can the LG Pra.L Medihair treat severe hair loss?

The LG Pra.L Medihair is most effective for individuals experiencing early signs of hair loss or those looking to prevent its progression. Many dermatologists emphasize "early treatment" because once hair loss is severe and hair follicles are completely lost, treatment effectiveness significantly decreases. The device works by stimulating existing hair follicles, making it less suitable for areas where follicles are no longer present.

What technology does the LG Pra.L Medihair use?

The LG Pra.L Medihair utilizes Low-Level Laser Therapy (LLLT), a technology that stimulates and activates hair follicle cells using light energy. The device contains a total of 250 light sources, comprising 146 lasers and 104 LEDs, strategically placed to cover the scalp. LLLT has been recognized since 2007 when the first laser hair loss treatment device received US FDA approval.