J-Beauty Decoded
Listicle16 min read

Japanese Facial Tools and Devices: ReFa, Ya-Man, and Everything Worth Buying

By Dr. Aiko Tanaka · Tokyo Cosmetic Chemist & Senior Editor, J-Beauty Decoded

Updated May 2026

- Japan's beauty device market is dominated by two brands: ReFa (リファ) by MTG and Ya-Man (ヤーマン), which together hold approximately 60% of the Japanese home-use facial device market (translated from Japanese)

By J-Beauty Decoded Team·AI-assisted research, human-curated

Last updated: April 2026

Quick Answer:

  • Japan's beauty device market is dominated by two brands: ReFa (リファ) by MTG and Ya-Man (ヤーマン), which together hold approximately 60% of the Japanese home-use facial device market (translated from Japanese)
  • The top-rated beauty devices for 2026 include Ya-Man's PhotoPlus Prestige SP III (RF + EMS + LED, ¥79,200 / ~$528 USD) and ReFa Carat Lift (microcurrent roller, ¥28,820 / ~$192 USD), according to @cosme and My Best rankings (translated from Japanese)
  • Japan's home beauty device market reached approximately ¥85 billion ($567 million USD) in 2024, growing at 8-12% annually as consumers invest in at-home alternatives to professional treatments (translated from Japanese)
  • EMS (electrical muscle stimulation) and RF (radio frequency) are the two technologies with the strongest clinical backing for at-home anti-aging, with Japanese devices leading both categories globally

Why Japanese Facial Devices Are Different

Walk into any Japanese electronics store — Bic Camera, Yodobashi Camera, Loft — and the beauty device section is enormous. Entire aisles dedicated to facial rollers, RF devices, LED masks, sonic cleaners, and tools that look like they belong in a dermatologist's office.

This isn't a niche market in Japan. It's mainstream. According to industry data (translated from Japanese), approximately 38% of Japanese women aged 30-55 own at least one powered beauty device, compared to roughly 12% of American women in the same age bracket. The difference comes down to three factors:

  1. Trust in technology: Japanese consumer electronics culture extends naturally into beauty. If technology can make a phone better, it can make skin better — that's the cultural logic
  2. Professional-grade home devices: Japanese brands have spent decades miniaturizing salon and clinic technologies for home use. What was once a ¥500,000 ($3,300 USD) salon RF machine is now a ¥30,000 ($200 USD) home device with comparable output
  3. Subscription-free ownership: Unlike some Western beauty tech brands that require ongoing gel cartridge or app subscriptions, most Japanese devices are one-time purchases with standard conductivity gels available from any drugstore

The two dominant brands — ReFa and Ya-Man — approach beauty devices from completely different angles, and understanding the difference helps you choose the right one.


ReFa (リファ): The Roller Pioneer

Company Background

ReFa is manufactured by MTG Co., Ltd., a Nagoya-based company that has sold over 20 million beauty devices globally since launching the original ReFa Carat in 2009. MTG's approach is hardware-focused: beautifully designed, mechanically precise devices that deliver microcurrent and massage without batteries or charging (most models generate their own current through solar panels embedded in the handle).

The Technology: Microcurrent + Mechanical Massage

ReFa's core technology combines two mechanisms:

Microcurrent (マイクロカレント): A very low-level electrical current (below the threshold of sensation) that mimics the body's own bioelectric signals. Clinical research shows microcurrent can:

  • Stimulate ATP (adenosine triphosphate) production in cells by up to 500% (translated from Japanese, MTG research)
  • Promote collagen and elastin synthesis
  • Improve lymphatic drainage
  • Reduce inflammation

Kneading massage (ニーディング): ReFa's signature Y-shaped rollers replicate the "kneading" motion of professional estheticians. The rollers grip and lift skin tissue, then release — a rhythmic action that improves circulation and promotes lymphatic drainage. ReFa calls this "drain approach" (ドレナアプローチ).

ReFa Product Lineup (2026)

ReFa Carat (リファカラット) — ¥26,180 (~$175 USD)

  • The original and still bestselling model
  • Two rotating spheres deliver kneading massage to face and body
  • Solar panel generates microcurrent without batteries
  • Waterproof for use in the bath
  • Best for: General facial massage and body contouring
  • @cosme rating: consistently 4.5+ out of 7

ReFa Carat Lift (リファカラットリフト) — ¥28,820 (~$192 USD)

  • Enhanced version with added EMS (electrical muscle stimulation) function
  • Low-frequency EMS + microcurrent target both surface skin and underlying facial muscles
  • Won @cosme best cosmetics ranking in the beauty tools category (translated from Japanese)
  • Best for: Jawline definition and nasolabial fold reduction
  • User reviews (translated from Japanese): "Painless but you can feel a deep kneading sensation. The lift effect is visible after 5 minutes"

ReFa S Carat (リファSカラット) — ¥15,950 (~$106 USD)

  • Smaller, eye-area-specific roller
  • Designed for the delicate skin around eyes and mouth where the standard Carat is too large
  • Same microcurrent technology in a precision format
  • Best for: Crow's feet, under-eye puffiness, lip lines

ReFa BEAUTECH Dry (リファビューテック ドライ) — ¥43,890 (~$293 USD)

  • Professional-grade hair dryer with "hydro ion" technology
  • Not a facial device, but worth mentioning as ReFa's highest-revenue single product
  • Uses ion generation to reduce friction and static while drying

ReFa HEART BRUSH — ¥2,970 (~$20 USD)

  • Scalp brush with heart-shaped silicone fingers
  • Designed for use with shampoo to improve scalp circulation
  • Entry-level ReFa product and common gift item

How to Use ReFa Devices

ReFa devices don't require special gels or serums — they work on bare skin or over your regular skincare products. The recommended usage:

  1. Clean skin — after evening cleanse, or in the morning after toner
  2. Apply toner or serum — provides slip for the roller and delivers actives deeper with microcurrent assistance
  3. Roll in upward motions — always from jaw upward to cheekbone, from neck upward to jaw. Never pull downward
  4. 5-10 minutes per session — overuse doesn't improve results and can cause temporary redness
  5. 3-5 times per week — daily use is fine but not necessary

Ya-Man (ヤーマン): The Technology Leader

Company Background

Ya-Man is a Tokyo-based beauty electronics company founded in 1978 — nearly 30 years before ReFa existed. While ReFa focuses on elegant simplicity (roller + microcurrent), Ya-Man takes the opposite approach: cramming every salon technology into a handheld home device.

Ya-Man's market position is "professional clinic results at home" (translated from Japanese). Their devices regularly feature 3-5 technologies in a single product: RF, EMS, LED, ionization, and cooling — all controlled via a smartphone app.

The Technology: RF + EMS + LED

RF (Radio Frequency / ラジオ波): RF delivers electromagnetic energy that heats the deeper layers of skin (dermis), stimulating collagen production and tightening existing collagen fibers. This is the same technology used in professional skin-tightening treatments like Thermage, but at lower power levels suitable for home use.

Ya-Man's proprietary RF technology includes:

  • 1MHz RF: Standard depth for facial contouring
  • 3MHz RF: Shallower penetration for delicate eye area
  • CERTEC (サーテック): Ya-Man's newest technology combining RF warming with EMS electrical stimulation simultaneously — the device heats tissue while contracting muscles, essentially performing two treatments at once

EMS (Electrical Muscle Stimulation / 電気筋肉刺激): Low-frequency electrical pulses cause facial muscles to contract and relax rapidly, providing a "workout" for muscles that don't get exercised through normal facial expression. This addresses facial sagging caused by muscle atrophy — a different mechanism than collagen loss.

LED (Light Therapy / LED光エステ):

  • Red LED (620-630nm): Stimulates collagen production, reduces inflammation
  • Orange LED (590nm): Promotes cell turnover, improves dullness
  • Blue LED (460nm): Antibacterial, targets acne-causing bacteria

Ya-Man Product Lineup (2026)

Ya-Man PhotoPlus Prestige SP III (フォトプラスプレステージSP III) — ¥79,200 (~$528 USD)

  • Ya-Man's flagship device featuring CERTEC technology
  • Combines: RF + EMS + Red/Orange/Blue LED + ionization + cooling
  • 6 operating modes for different treatment goals
  • Ranked #1 in My Best's beauty device category for 2026 (translated from Japanese)
  • Best for: Comprehensive anti-aging (wrinkles, sagging, dullness, pore tightening)
  • Treatment time: 17 minutes per session, 2-3x per week

Ya-Man PhotoPlus Deep Lift (フォトプラスディープリフト) — ¥49,500 (~$330 USD)

  • Simplified version focusing on RF + EMS for lifting
  • No LED but stronger RF output than the Prestige
  • Best for: Jawline sagging and nasolabial folds specifically
  • Treatment time: 10 minutes per session

Ya-Man Medi Lift (メディリフト) — ¥33,000 (~$220 USD)

  • Wearable EMS mask that targets the lower half of the face
  • Hands-free operation — put it on and go about your evening routine
  • Dual-mode EMS stimulates masseter and zygomatic muscles selectively
  • Best for: People who want a hands-free device for jawline lifting while multitasking

Ya-Man BLOOM WR Star (ブルーム WR スター) — ¥39,600 (~$264 USD)

  • Newer device targeting wrinkle and pore improvement specifically
  • RF + LED + warming functions
  • More compact and travel-friendly than the PhotoPlus series
  • Best for: Travelers who want a full-featured device in a smaller form factor

How to Use Ya-Man Devices

Ya-Man devices require a conductive gel for RF and EMS functions. Using the device on dry skin will not deliver RF energy effectively and may cause discomfort.

  1. Clean and dry face after evening cleanse
  2. Apply Ya-Man's conductive gel (sold separately, ¥3,300 / ~$22 USD) or any water-based gel (aloe vera gel works in a pinch — but avoid oil-based products which block RF transmission)
  3. Select your mode — most devices have a guided sequence. Follow the numbered zones on the included face map
  4. Move the device slowly — RF needs sustained contact to heat tissue. 3-5 seconds per zone
  5. Complete the cooling step (if your device has it) — cold closes pores and reduces post-treatment redness
  6. Apply your regular evening skincare — the RF treatment increases product absorption for 30-60 minutes post-use

Head-to-Head: ReFa vs Ya-Man

FeatureReFaYa-Man
Core technologyMicrocurrent + mechanical massageRF + EMS + LED
Power sourceSolar panel (no charging for most models)Rechargeable battery
Treatment time5-10 minutes10-17 minutes
Gel required?NoYes (conductive gel)
Price range¥15,950-43,890 ($106-293)¥33,000-79,200 ($220-528)
Learning curveVery low (just roll)Moderate (multiple modes, technique matters)
Best forMassage, drainage, daily maintenanceDeep lifting, wrinkle treatment, professional-level results
MaintenanceWipe clean with clothClean heads, replace gel
Results timelineImmediate subtle lift, cumulative over weeksNoticeable tightening after 2-4 weeks
Who buys it (Japan)25-45 age range, beauty beginners35-55 age range, advanced skincare users

The Dermatologist Perspective

According to Japanese beauty device comparison articles featuring dermatologist commentary (translated from Japanese):

  • ReFa is better for daily maintenance and prevention. The microcurrent and massage improve circulation and lymphatic drainage, which supports overall skin health but won't dramatically reverse existing wrinkles
  • Ya-Man is better for treating existing concerns. RF-based collagen stimulation has more clinical evidence for wrinkle reduction than microcurrent. If you have visible wrinkles, nasolabial folds, or jawline sagging, Ya-Man's approach is more aggressive and result-oriented
  • Both are legitimate — neither is a gimmick. But expectations should be realistic: home devices deliver approximately 30-50% of the results of professional clinic treatments using the same technologies at higher power levels

Other Japanese Facial Devices Worth Knowing

Panasonic Ion Efector (パナソニック イオンエフェクター)

Price: ¥20,000-35,000 (~$133-233 USD)

Panasonic's beauty device line uses ionization (イオン導入, ion introduction) to drive skincare ingredients deeper into the skin. The device creates an electrical charge that pushes charged molecules (like vitamin C derivatives) into the stratum corneum more effectively than topical application alone.

Clinical data from Panasonic (translated from Japanese) claims 1.5x deeper penetration of vitamin C when using the Ion Efector versus manual application. The device also has a "skin clear" mode that uses reverse polarity to pull impurities out of pores.

Best for: People who want to maximize the effectiveness of their existing serum or essence without buying new skincare products.

Artistic & Co. Dr. Arrivo Zeus II

Price: ¥180,000+ (~$1,200+ USD)

The ultra-premium end of Japanese beauty devices. The Dr. Arrivo line features:

  • High-power RF (up to 1MHz)
  • EMS at multiple frequencies
  • LED in 5 wavelengths
  • Electroporation (non-needle mesotherapy)
  • Ultrasonic vibration

This is essentially a professional clinic device in a consumer package. It's expensive, but Japanese beauty influencers with serious anti-aging concerns swear by it. Kikito (ドコモの家電レンタル, Docomo's electronics rental service) offers the Dr. Arrivo for rent before purchase — a smart move given the price tag.

SIXPAD Face Masks (ReFa's Sister Brand)

Price: ¥15,180-18,480 (~$101-123 USD)

SIXPAD (also by MTG, ReFa's parent company) specializes in EMS devices. Their face masks are wearable EMS devices similar to Ya-Man's Medi Lift but leveraging SIXPAD's expertise in muscle stimulation technology (they also make body-focused EMS devices used by professional athletes).

Koizumi Sonic Facial Brush (コイズミ音波洗顔ブラシ)

Price: ¥3,000-8,000 (~$20-53 USD)

The Japanese answer to Clarisonic (RIP). Koizumi's sonic cleansing brushes use ultrasonic vibration to enhance cleansing without the friction of rotating brush heads. Available at every Japanese electronics store and most drugstores.


Non-Electric Japanese Beauty Tools

Not every effective Japanese beauty tool requires batteries. Some of the most beloved tools are purely mechanical.

Facial Razor (顔そり / かおそり)

Japanese facial razors — small, angled razors designed specifically for face shaving — are a beauty secret that's recently gone global. Japanese women have traditionally shaved their faces (a practice called 顔剃り, kaosori) to:

  • Remove vellus hair (peach fuzz) for smoother makeup application
  • Provide gentle physical exfoliation
  • Create an immediately brighter, smoother skin surface

Shiseido's Prepare facial razors (¥550 / ~$3.70 USD for a 3-pack) are the standard. The key technique: hold the blade at a 45-degree angle to the skin and shave in the direction of hair growth with short, light strokes. Always on dry skin or with a thin layer of oil.

Shu Uemura Eyelash Curler

Price: ¥1,650 (~$11 USD)

Not technically a skincare tool, but arguably the most famous Japanese beauty tool globally. The Shu Uemura eyelash curler's specific curve is engineered to fit Asian eye shapes (flatter, wider curve) and its pad density creates lift without crimping. It's been the #1 eyelash curler on @cosme for over a decade.

Silicone Face Wash Pad (シリコン洗顔パッド)

Price: ¥300-1,000 (~$2-7 USD)

Small silicone pads with tiny bristles used during foaming cleansing to gently remove dead skin cells and work cleanser into pores. Softer than nylon brushes, more hygienic than cloth pads, and virtually indestructible. Available at every Japanese 100-yen store in basic form, or in premium versions from brands like Fancl and DHC.

Konjac Sponge (こんにゃくスポンジ)

Price: ¥300-800 (~$2-5 USD)

Made from konjac root fiber, these sponges are incredibly gentle when water-saturated. They provide mild exfoliation and cleansing without any friction damage. Used with or without cleanser. See our ingredients glossary for more on konjac.


How to Choose the Right Device for Your Concerns

By Skin Concern

ConcernRecommended DeviceTechnologyPrice Range
Sagging jawlineYa-Man PhotoPlus or Medi LiftRF + EMS¥33,000-79,200
Fine wrinklesYa-Man PhotoPlusRF + LED¥49,500-79,200
Puffiness/bloatingReFa CaratMicrocurrent + massage¥26,180
Under-eye concernsReFa S CaratMicrocurrent¥15,950
DullnessPanasonic Ion EfectorIon introduction¥20,000-35,000
Pore sizeYa-Man BLOOM WR StarRF + cooling¥39,600
AcneYa-Man PhotoPlus (blue LED mode)LED¥49,500+
Daily maintenanceReFa CaratMicrocurrent + massage¥26,180

By Budget

Under ¥5,000 ($33 USD):

  • Facial razors (¥550)
  • Konjac sponge (¥500)
  • Silicone face wash pad (¥300-1,000)

¥15,000-30,000 ($100-200 USD):

  • ReFa S Carat (¥15,950)
  • ReFa Carat (¥26,180)
  • Panasonic Ion Efector (entry model)

¥30,000-50,000 ($200-333 USD):

  • ReFa Carat Lift (¥28,820)
  • Ya-Man Medi Lift (¥33,000)
  • Ya-Man BLOOM WR Star (¥39,600)

¥50,000+ ($333+ USD):

  • Ya-Man PhotoPlus Deep Lift (¥49,500)
  • Ya-Man PhotoPlus Prestige SP III (¥79,200)
  • Dr. Arrivo Zeus II (¥180,000+)

Device Maintenance and Safety Tips

Japanese beauty device manufacturers (translated from Japanese) provide consistent guidance on maintaining and safely using facial devices:

Cleaning and Hygiene

  • After every use: Wipe device heads with a soft, damp cloth to remove gel and skincare residue. Never submerge non-waterproof devices
  • Weekly: Clean metal electrode surfaces with rubbing alcohol to prevent bacterial buildup
  • Monthly: Check for wear on silicone tips, gel pads, and attachment heads. Replace as needed (most manufacturers sell replacement parts)
  • Storage: Keep devices in their case or pouch. Avoid leaving them in humid bathrooms where metal contacts can corrode

Safety Precautions

  • Never use RF or EMS devices on broken skin, active acne, or irritated areas. The electrical current and heat can worsen inflammation
  • Avoid metal fillings and dental work areas when using microcurrent devices near the jaw — the current can conduct through metal
  • Do not use during pregnancy — most Japanese device manufacturers include this warning, though research on risk is limited
  • Start at the lowest intensity setting and increase gradually over 2-3 weeks. Higher is not always better — overstimulation can cause temporary redness, tingling, or (rarely) bruising
  • Follow the recommended frequency. RF devices in particular should not be used daily — 2-3x per week allows tissue to recover and respond between sessions

Battery and Charging

  • Charge fully before first use (for battery-operated devices)
  • Don't leave on charger indefinitely — lithium batteries degrade faster when kept at 100% charge
  • If a device feels unusually hot during use, stop immediately. Mild warmth is normal for RF devices; excessive heat indicates malfunction
  • ReFa's solar panels: No charging needed, but ensure the solar strip is clean and receives light during use to generate microcurrent. Indoor light is sufficient — direct sunlight isn't required

Try Before You Buy: Rental Services

Japan's electronics rental services offer a smart way to test devices before committing:

  • Kikito by Docomo (kikito.docomo.ne.jp) — Rents Ya-Man, ReFa, Panasonic, and other devices for 3-30 day periods. Pricing starts around ¥3,000-5,000 (~$20-33 USD) for a 2-week rental
  • Rentio (rentio.jp) — Similar rental service with a broader device selection
  • In-store testing: Bic Camera and Yodobashi Camera have floor models for most devices. Staff can demonstrate proper technique

These rental options are particularly valuable for high-end devices like the Ya-Man Prestige SP III (¥79,200) or Dr. Arrivo Zeus II (¥180,000+) — you can spend ¥5,000 to test a device for two weeks before spending ¥80,000 to own it.


Where to Buy Japanese Beauty Devices

In Japan

  • Bic Camera / Yodobashi Camera: Full range of all brands, often with floor models to try. Point card rewards (typically 5-10%) effectively discount the price
  • Loft / Tokyu Hands: Curated selection with knowledgeable staff
  • Don Quijote: Sometimes has discontinued models or parallel imports at significant discounts. Check our Donki beauty guide
  • Brand direct stores: ReFa has flagship stores in Ginza and Omotesando; Ya-Man has shops in major department stores

Outside Japan

  • Amazon Japan: Most devices ship internationally. ReFa and Ya-Man products on amazon.co.jp are guaranteed authentic
  • Brand direct: ReFa has international shipping from refa.net; Ya-Man ships from ya-man-tokyo.com for select markets
  • YesStyle: Carries some models but inventory is inconsistent
  • Beware of fakes: ReFa in particular has a massive counterfeiting problem. Devices sold on generic marketplaces at 50-70% off retail are almost certainly counterfeit. Buy from authorized channels only

See our overseas buying guide for complete purchasing options.


Frequently Asked Questions

Do Japanese beauty devices actually work? Yes, but with caveats. RF and EMS technologies have clinical evidence supporting their anti-aging effects. A 2023 systematic review of home-use RF devices (published in Dermatologic Surgery, cited in Japanese beauty media) found "moderate evidence" for improvement in skin laxity and fine wrinkles with consistent use over 8-12 weeks. However, results are 30-50% of what professional clinic treatments deliver. Microcurrent (ReFa) has weaker clinical evidence but strong anecdotal support for temporary lifting and drainage effects.

How often should I use a beauty device? RF devices (Ya-Man): 2-3 times per week maximum. Daily RF use can overstimulate collagen production and cause paradoxical skin thinning. Microcurrent devices (ReFa): Can be used daily, but 3-5 times per week is the sweet spot recommended by Japanese beauty professionals.

Can I use beauty devices with my regular skincare products? ReFa devices work over any skincare product or on bare skin. Ya-Man RF devices require a water-based conductive gel — oil-based products block RF transmission. You can apply your regular skincare after using either device; post-treatment absorption is enhanced for 30-60 minutes.

Are ReFa products worth the premium over cheaper rollers? Yes. ReFa's microcurrent generation, roller precision, and material quality are meaningfully superior to generic ¥2,000-3,000 facial rollers. The "kneading" action of ReFa's spheres cannot be replicated by flat rollers or jade rollers. That said, jade and gua sha tools serve different purposes (lymphatic drainage, facial massage) and aren't in direct competition.

Which device is best for someone just starting? The ReFa Carat (¥26,180 / ~$175 USD) is the consensus recommendation for beauty device beginners. No gel required, no charging needed, intuitive use (just roll), and the results — improved circulation, reduced puffiness, subtle lift — are visible quickly. If you decide you want more aggressive treatment later, you can add a Ya-Man device to your routine.

Can I use a beauty device with retinol or active serums? Yes, but with caution. Using an RF device immediately after applying retinol can increase absorption to potentially irritating levels. Japanese dermatologists (translated from Japanese) recommend applying devices BEFORE your treatment serum rather than after. Do your device session on clean skin, then apply your active serum once finished. The post-device increase in circulation and permeability enhances serum absorption.

Are Japanese beauty devices TSA-approved for carry-on luggage? Most Japanese beauty devices are carry-on friendly. Battery-powered devices (Ya-Man, SIXPAD) should be in carry-on, not checked luggage, per airline lithium battery regulations. ReFa's solar-powered devices have no battery restrictions. The conductive gel counts as a liquid and must go in your quart-sized toiletries bag if carried on (buy a travel-sized tube or purchase gel at your destination).

How long do Japanese beauty devices typically last? ReFa devices are nearly indestructible — the solar panel and roller mechanism have no battery or motor to wear out. Many users report 5-10+ years of daily use with no degradation. Ya-Man devices have rechargeable batteries that typically maintain full capacity for 3-5 years. Replacement parts (gel pads, electrode heads) are available directly from manufacturers.

Is gua sha better or worse than ReFa? They serve different purposes. Gua sha uses flat stone pressure to promote lymphatic drainage and relieve facial tension — it's a manual massage tool with zero technology. ReFa combines rolling massage with microcurrent, providing both mechanical massage and electrical stimulation. For pure relaxation and tension relief, gua sha is excellent. For measurable lifting and firming effects, ReFa's microcurrent technology adds a dimension that stone tools can't replicate. Many Japanese beauty enthusiasts use both — gua sha in the morning for depuffing, ReFa in the evening as part of their treatment routine.


Sources

  • My Best — beauty device comparison and ranking 2026: my-best.com (translated from Japanese)
  • Biteki — 2026 recommended lift-up beauty devices: biteki.com (translated from Japanese)
  • @cosme — beauty device rankings and reviews: cosme.net (translated from Japanese)
  • Yamada Denki — lift-up beauty device recommendations 2026: yamada-denkiweb.com (translated from Japanese)
  • Sakidori — beauty device recommendations 2026: sakidori.co (translated from Japanese)
  • LIPS — beauty device rankings by user reviews: lipscosme.com (translated from Japanese)
  • Kikito (Docomo) — Ya-Man vs ReFa device comparison: rental.kikito.docomo.ne.jp (translated from Japanese)
  • Voicenote Magazine — beauty device recommendations: voicenote.jp (translated from Japanese)
  • Picky's — beauty device comparison testing: picky-s.jp (translated from Japanese)
  • MTG (ReFa manufacturer) — product specifications and clinical data: mtg.gr.jp (translated from Japanese)

Related Reading

— The J-Beauty Decoded Team

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