Draft record: not yet reviewed. Last researched 1 Nov 2026.

LED face mask

Silk'n LED Face Mask 100

· Model ND-FM02

Company: Silk'n UK Ltd.

A flexible silicone mask with 100 LEDs offering red, blue, yellow and purple (red + blue) programmes, run from a wired, rechargeable remote control.

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3 light types633 / 463 / 592 nm
10–15-minute sessionsper treatment
Light outputRed: 25.04; Blue: 89.68; Yellow: 13.23; Purple: 77.95 mW/cm²
24-month warrantyfrom the manufacturer

Light and dose

Light	Wavelength	LEDs
Red	633 nm	—
Blue	463 nm	—
Amber/yellow	592 nm	—
Total		100

Sources differ: Boots page describes '300 LED bulbs'; manufacturer states 100.

Light output (irradiance)

Red: 25.04; Blue: 89.68; Yellow: 13.23; Purple: 77.95mW/cm²

How it was measured isn’t published. Manufacturer-stated

Dose per session

Not published

Not yet checked

Notes on these figures

Per-programme figures on UK product page. Measurement distance, location, instrument and whether peak or averaged are NOT disclosed. Not in the manual. Blue (89.68) higher than red is unusual — ask how it was measured.

Light-output figures come from the manufacturer. Independent checks are rare, even in published studies, so treat them as claims. Why

Using it

Treatment

Session length: 10 (manual, one colour); 15 (auto cycle: red 5, blue 3, yellow 4, purple 3)
Details
Manual and page: do not exceed 15 minutes per session.
How often: Build up over 4 weeks to daily use; once results show, once or twice per week Conflicting information
Sources differ: Manual: wk1 every 3 days, wk2 every 2 days. Page: wks 1–2 every 2–3 days; wks 3–4 'every 2 days or daily' vs manual wk3 every 2 days, wk4 daily.

Details
Manual: wk1 every 3 days, wk2 every 2 days (max 10 min), wk3 every 2 days, wk4 daily (10–15 min). Product page: wks 1–2 every 2–3 days, wks 3–4 every 2 days or daily.
Modes: Manual mode: M1 red, M2 blue, M3 yellow, M4 purple (10 min each); Auto mode: all four in sequence (15 min)
Auto shut-off: Yes, at end of session (10 or 15 min); also switches off on low battery

Design and power

Power: Rechargeable battery in wired remote control; charges by USB (5 V, 1 A); USB wall adapter not included
Battery: Lithium, 1,500 mAh, 3.7 V; page: 'Battery life up to 130 min.'
Charge time: 2–3
Use while charging: No
Details
'The product cannot be used during charging.'
Eye protection: — Not disclosed
Sources differ: Page FAQ: closing eyes 'not necessary'. Manual: 'Do not look directly at the light source part of the product.'

Details
Neither manual nor page mentions eye shields or goggles. Guardian reviewer describes built-in eye shields (third-party). Page FAQ says closing eyes is 'not necessary'; manual says 'Do not look directly at the light source' — see conflicts.
Weight: 289 g Conflicting information
Sources differ: Manual: 289 g. Product page: 0.31 kg.

Details
Manual: 289 g. Product page: 0.31 kg. Unclear whether either includes the remote control.
App needed: No
Details
Operated from physical remote control; no app mentioned.
Subscription: No
Details
No app or paid features mentioned.
Replaceable battery: No
Details
'This product contains batteries that are non-replaceable.'

Values are as stated by Silk'n unless marked otherwise.

How much Silk'n publishes

9 of 12 key facts published

Wavelengths: published
LED count: published
Light output (irradiance): published
How output was measured: not published
Treatment time: published
Warranty: published
Returns policy: published
User manual: published
Who should not use it: published
Safety standards declared: not published
Published study of this device: not published
UK company / contact: published

This counts what's disclosed. It doesn't measure how well the mask works.

What Silk'n claims quoted, not verified

“Tackles skin ageing, blemish and dry skin”

“Boost collagen to reduce wrinkles or blemishes”

“Real results from 4 weeks”
Context
Page FAQ separately says 'Normally you can expect results in about 2-3 weeks.'

“633nm: Reduces fine lines and wrinkles, stimulates collagen and helps to improve blood circulation.”

“463nm: Reduces blemish and imperfections for clearer skin.”
Context
Manual wording: 'Reduces acne-related redness and imperfections for clearer skin'.

“592 nm: Improves skin hydration and soothes dry and sensitive skin.”

“463 - 633nm: Anti-ageing and reduction of skin imperfections to improve the skin's vitality and radiance.”

“Silk'n LED Face Mask has been thoroughly tested with the conclusion that it is safe to use in a typical home environment”
Context
No test report published.

“It is suitable for both women and men, for all skin types and all skin colours.”

“Results after 15 sessions”
Context
Caption on before/after images; no subject numbers or conditions given.

“You don't need fillers, this gadget gets rid of lines and age spots.”
Context
Press quote attributed to The Sun, displayed on brand page.

Evidence

No evidence about this specific mask found yet.

General research on red light doesn't prove a particular mask gives the same results. Research overview

What reviewers say

Summaries in our own words. Luma Index hasn't tested this mask.

The Guardian (The Filter)

UK · 28 Oct 2026 · tested

Best budget LED face mask

Lower price than most masks in the roundup
Four colour settings plus an automatic cycle
Flexible silicone with built-in eye shields

No countdown timer
No near-infrared LEDs

About this review

Lists 100 LEDs; four colours plus a 15-minute automatic cycle; no countdown. Read by Luma Index from the full article text supplied by the site owner (version updated 28 Oct 2026; by Sarah Matthews). Article carries an affiliate disclosure.

Read the article ↗

Cosmopolitan UK

UK · 7 Oct 2026 · tested

Best for beginners

Low price for an LED mask
Four colours; two head straps keep it in place
Eye shields made it comfortable; skin felt calm afterwards

Feels flimsier than pricier masks

About this review

Its spec box lists near-infrared 830 nm and blue 405 nm; Silk'n's manual and the Guardian describe no near-infrared and blue at 463 nm. Gives 15-minute treatment time (the automatic cycle). Roundup by Clare Stephenson (Senior Fashion and Beauty Ecommerce Writer), masks under £500 tested over their recommended period (typically four to six weeks); some entries were recommended by the Cosmo UK team or dermatologists rather than tested by the writer. Article carries an affiliate disclosure. Text supplied by the site owner.

Read the article ↗

The Guardian (The Filter)

UK · 31 Jul 2026 · tested

Best affordable option

Comfortable
Good for blemishes and early signs of ageing

Feels slightly less sturdy than pricier masks

About this review

One-paragraph recommendation. Feature by Sarah Matthews (31 Jul 2026), 'Skincare staple or expensive gimmick: do you really need a light therapy device?', with dermatologist Dr Derrick Phillips and facialist Justine Masters. Not a roundup: it refers back to her tests for the Guardian's best-masks guide. Article carries an affiliate disclosure. Text supplied by the site owner.

Read the article ↗

Safety and regulation

Who shouldn't use it Silk'n's list

Pregnancy (manual); pregnancy or nursing (product page)
Children (manual); page says 18+ only
Epilepsy
Thyroid conditions or thyroid medication
Photoallergy or light-allergy medication
Skin diseases, wound ulceration, trauma, post-operative wounds
Not tested on people with dermal fillers or after surgical/professional treatments (facelift, microneedling, ablative RF/laser) — consult a physician; wait for full healing
Stop if discomfort, itching, inflammation or excessive warmth

Age: 18 and over (page); manual says not for children

Sources differ: Manual: not for pregnant women. Page: not for pregnant or nursing.

Regulatory status

UK: Advertising Standards Authority ruling (brand-level): Upheld, 5 Nov 2025 (A25-1293796) Independently verified
Details
ASA ruling A25-1293796 (5 Nov 2025), Invention Works BV t/a Silk'n, upheld: a Meta ad and silkn.co.uk page for 'an LED face mask' (model not named) made acne claims; the ASA 'had seen no evidence that the product was registered with the MHRA or had the appropriate conformity marking'. Not confirmed that the ruling concerns this model.
UK: UKCA: Manual symbol table includes a 'Declaration of Conformity' symbol for 'all applicable provisions of the United Kingdom' Manufacturer-stated
Details
Symbol shown in manual's legend; which regulations it covers not stated. Product page mentions no marking. Ask for the declaration of conformity.
EU: CE: Manual symbol table includes a 'Declaration of Conformity' symbol for 'all applicable provisions of the European Economic Area' Manufacturer-stated
UK: Intended purpose: 'exclusively designed to recover your skin's glow, elasticity and texture… reduce the appearance of fine lines, wrinkles and other skin imperfections'; private use only Manufacturer-stated
Details
Cosmetic wording; no medical-device classification stated. MHRA registration not checked.
US: FDA 510(k) clearance Not yet checked
Details
openFDA 510(k) search for applicants Silk'n Beauty Ltd / Home Skinovations returned no LED face mask. The OEM behind model ND-FM02 is not named, so a clearance under another applicant cannot be ruled out. US status only — not a UK approval.

A conformity mark or US FDA clearance doesn't prove a device works. "Not published" doesn't mean unsafe. If you have a medical condition, are pregnant or take light-sensitising medicines, ask your GP or pharmacist first.

Ownership and where to buy

Ownership

Company: Silk'n UK Ltd., 2nd Floor, De Burgh House, Market Road, Wickford, Essex, SS12 0FD
Warranty: 24 months
Details
From delivery date; production defects only; devices bought from Silk'n or an authorised provider; excludes accident, misuse, unauthorised servicing, wrong power source, unauthorised accessories. Claim via [email protected]; proof of purchase and possibly a video of the fault.
Returns: 30 days from delivery; hygiene devices cannot be returned once unsealed or used; must be complete in original packaging; refund to original payment method within 14 days of processing. Wrong item: report within 14 days, postage refunded.
Details
Delivery page banner says 'Free returns within 30 days'; returns page does not say who pays standard return postage. Brand-site purchases only; statutory rights also apply.
User manual: Yes
Details
13-language manual, edition code 2606_010_EU, created July 2026.

In the box

Face mask
Remote control
Connector
USB charging cable
2 large elastic straps
2 small elastic straps
User manual

Retailer	Price	Checked	Link
Silk'n (UK)	£160	1 Nov 2026	Visit
Lookfantastic	£99.99	1 Nov 2026	Visit
Boots	£119	1 Nov 2026	Visit
BootsLimited Edition Purple	£79.99	1 Nov 2026	Visit

Prices older than 14 days show "Check price". Amazon prices are not stored.

Other places sources disagree

Time to results: 'Real results from 4 weeks' (page bullet) vs 'about 2-3 weeks' (page FAQ).

Open questions (14)

Facts we still need from Silk'n

Irradiance measurement method: distance, points measured, instrument; peak or averaged?
Why is blue (89.68 mW/cm²) much higher than red (25.04 mW/cm²)?
LED count per colour, and wavelength tolerances (±nm), peak vs dominant
Does the mask have eye cut-outs or shields, and is eye protection advised (FAQ vs manual)?
IEC 62471 photobiological safety classification and any other standards tested to
UKCA declaration of conformity — which regulations does it cover?
Is it registered with MHRA as a medical device, or sold as a cosmetic device only?
OEM / original manufacturer of ND-FM02; any US FDA 510(k) number
Any study behind the '15 sessions' before/after images or 'Real results from 4 weeks'
Weight: 289 g or 310 g; does it include the remote control?
Sessions per full charge (130 min battery life ≈ 8–13 sessions?)
Who pays return postage for change-of-mind returns?
EAN/article code for the pink colourway; is it otherwise identical?
Authorised UK retailers list (warranty requires authorised seller)