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Decision snapshot
PriceNot disclosed
Technology categoryEMS
Technology evidenceD
Product evidenceUnknown
Dose disclosureNone (0/2)
Protocol matchUnknown
Time burdenUnknown
Consumable lock-inUnknown
ManufacturingUnknown
Separate signals only — no combined score.
Technology
EMS (muscle stimulation) · general tech evidence D
Low/medium-frequency current contracts facial muscles
Dose transparency · None (0/2)
Current (µA/mA)Not disclosed
Pulse informationNot disclosed
Undisclosed values are never estimated; “Not disclosed” is itself information for comparison.
Evidence
EMS (muscle stimulation) D — Muscle contraction is clear, but independent controlled studies of facial cosmetic results are rare.
Product grade (studies of this model only): A ≥2 independent RCTs (30+ each) · B one RCT or two controlled studies · C uncontrolled, small or maker-linked. Without them the technology grade is shown, except for multi-function devices and LED without published wavelengths. Without a published dose, study results cannot be assumed to apply to this product.
Technology evidenceD
Product evidenceUnknown (no study of this model)
Research protocol matchUnknown
Can the effect be attributed to one technology?Yes — EMS
Protocol match detail
CurrentUnknown
Treatment timeUnknown
Treatment frequencyUnknown
Actual output is not published, so the technology evidence cannot be assumed to apply to this product. Multi-function device studies are never reused as evidence for a single technology.
Clinical studies
Studies of this model
No public product-level study found. We will add any public study the maker points to.
Related studies — other models (not used for this grade)
Evaluating the effectiveness and safety of home facial anti-aging beauty devices based on meridian and acupoint theory (Bu et al., J Cosmet Dermatol) (2025)
Study typeRelated / different-device study
Device testedYA-MAN ACE 5th generation and Jmoon Speed (not MediLift; multi-function devices, so not EMS-only evidence)
FundingIndependent evidence90 randomised to three groups (80 completed); control was a non-powered RF device. No specific grant, no conflicts declared
Sample90
Duration4 weeks
Control · randomised · blindedYes · Yes · Unknown
MeasuredWrinkles, texture, radiance, laxity — VISIA, standardised photos
ResultImprovement vs control reported; authors call for more safety verification
Source
Marketing claim vs evidence
ClaimManufacturer claim“Face line”
EvidenceNo public study found
Measured resultNone
Independent replicationUnknown
Mechanism vs result
Mechanism shownYes
Biological effect shownPartial
Visible cosmetic result shownUnknown
Muscle contraction ≠ firmer skin. Even where effects appear, whether they need continued use is rarely measured.
Outcome susceptibility to placebo / natural variation
High
This does not mean the product has no effect. It shows how easily the reported result could be influenced by expectation, time, swelling, hydration or measurement conditions.
No study compared against a control, so reported change cannot be separated from the factors below.
Natural skin variation · Hydration · Swelling · Lighting · Camera angle · Make-up · Weight change · Sleep · Menstrual cycle · Skincare used alongside · Massage effect
Before / after reliability
Unknown
A: controlled conditions + objective device measurement + blinded assessment · B: mostly controlled · C: partly · D: large lighting/angle differences · F: marketing image. Only photos checked for lighting, camera, angle, expression and distance are graded; photos alone never confirm an effect.
OWNER REALITY
What owners actually experienced
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| Topic | What the evidence says | What owners say |
|---|
| Effect Satisfied with performance | Product evidence unknown · technology D | No data |
| Use Actual use (median) | Recommended protocol unknown | No data |
| Price Owner fair price (median) | Price not disclosed | No data |
| Service Satisfied with support | Warranty unknown | No data |
Not enough owner data yet.Have you used this product? Share your experience. Answers are shown only as aggregates and no personal details are collected.
Owner answers are user reports, not findings. Verified and unverified answers are separated; under 10 responses only counts are shown, under 30 a small-sample note is added.
Treatment burden
Session time not confirmed from official instructions or a study protocol.
Must you keep using it to maintain results?Unknown
Consumable lock-inUnknown
If the effect is small, this time is a cost too. Maintenance needs are shown only when sourced.
Pricing
Retail priceNot disclosed
Estimated markupNot shown — no BOM or factory-cost basis
Japanese list price not confirmed; only reseller prices found, so none shown
“Estimated markup” is used only with a real BOM or factory-cost basis. This product has none, so no number is invented. The price premium above is a ratio of real retail prices.
What is inside typical build · estimated
- Electrical pulse generator
- Electrode pads (silicone / hydrogel)
- Controller and MCU
- Battery
- Replacement pads (consumable)
The usual build of devices using this technology — not a teardown of this product. The parts total (BOM) is not computed without a basis.
What are you paying for?
HardwareUnknown
CertificationUnknown
BrandUnknown
MarketingUnknown
DistributionUnknown
ConsumablesUnknown
Gap to cheapest in categoryUnknown
Not a cost breakdown. Undisclosed items stay “Unknown”.
Cheaper products in the same technology category
No cheaper product in this technology category yet.
Comparable technology category; dose similarity is mostly unknown. Output, wavelength and extras may differ. Equal grades mean neither side has stronger evidence.
Total ownership cost
Not disclosed
Cost per studied protocol
No study of this model, so no cost per studied protocol is shown.
Cost per result is compared directly only between studies with the same endpoint, measurement method and duration. Ratios across different studies are not computed.
BUYING GUIDE
What to check before buying
EMS
Muscle stimulation has weak evidence for skin ageing.
Current and pulse informationWithout it, nothing can be compared.
ContraindicationsCheck pacemaker and implant contraindications.
Evaluation criteria, not a product ranking.
Country · OEM/ODM
Brand🇯🇵 Japan
HQJapan
Made inUnknown
ManufacturerUnknown
Battery made inUnknown
OEM / ODMUnknown
Brand nationality and country of manufacture can differ. Country and OEM are shown only when confirmed by product notices, manuals or import data; OEM structure is never inferred.
Safety · electrical
KC is electrical/radio conformity and is not a Korean medical-device approval number.
Official warnings not yet checked from the manual. Items to check for this technology: Pacemaker contraindication · Use during pregnancy · Skin irritation
Medical device regulatory status
Korea MFDSNot confirmed — database not searched
FDAUnknown
CEUnknown
ClassUnknown
Clearance or certification is not proof of effect.
Clinical evidence
Studies of this model (graded)None
Claims and related-device studies1
Product evidenceUnknown
Issues
Report charging, battery, overheating, burns, app, electrode, LED, weak output, shutdowns or consumable recognition problems. Reports are reviewed before publishing and makers can reply.
Report a problemA/S
WarrantyUnknown
Korea serviceUnknown
Repair availableUnknown
International warrantyUnknown
Return policyUnknown
Return difficultyUnknown · window ?d · opened Unknown · customer pays return Unknown · hygiene exclusion Unknown
Disclosure0/5
ASK OWNERS
Ask owners
Personal details are rejected automatically. Answers are owner experiences, not facts confirmed by AMS.
Sources
Checked 2026-10-02 · The same criteria apply to every product. Send corrections through the report page.