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

LED face mask

Shark CryoGlow

Full name: Shark CryoGlow Under-Eye Cooling + LED Anti-Ageing & Blemish Repair Mask · Model FW312UK

Company: SharkNinja Europe Ltd

A rigid plastic mask with red, blue and infrared LEDs, three preset LED routines and a built-in under-eye cooling function, operated from a rechargeable remote with an LCD screen.

Light and dose

LightWavelengthLEDs
Red 630 nm ±10 —
Near-infrared 830 nm ±10 —
Blue 415 nm ±10 —
Total480

Sources differ: 480 LEDs (510(k), EU manual) vs 160 (Guardian; Glamour UK says '160 tri-wick LEDs'). 510(k) says 160 tri-wick packages, so 160 is probably a package count.

Light output (irradiance)

128mW/cm²

Measured: Total per mode. Better Ageing: red 64 ±5 + IR 64 ±5. Blemish Repair/Skin Clearing step 1: blue 64 ±8 + IR 64 ±5; step 2: blue 55 ±6 + red 73 (±5 in EU manual); step 3: red 73 + IR 55 ±5. Skin Sustain: blue 59.8 ±7 + red 17.0 ±5 + IR 51.2 ±5. Manufacturer-stated

Dose per session

Not published

Not yet checked

Notes on these figures

Measurement distance, location and instrument NOT disclosed. Not published on the UK product page; UK manual not obtained.

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
Better Ageing 6; Blemish Repair 8; Skin Sustain 4; under-eye cooling alone 5, 10 or 15

Sources differ: 6 / 8 / 4 min (UK page, EU manual) vs 6.4 / 8.4 / 4.3 min (US 510(k)).

Details

510(k) gives 6.4, 8.4 and 4.3 min respectively. Cooling runs automatically with each LED routine and can be switched off.

How often
Once daily for at least 8 weeks (Better Ageing or Blemish Repair), then Skin Sustain once daily to maintain
Details

UK product page gives no consumer frequency; it mentions '1x/day use' only in study footnotes and Skin Sustain 'after an 8-week cycle'. Wording above is from the EU/CH manual and US 510(k); UK manual not obtained.

Modes
3 LED routines (Better Ageing: red + IR; Blemish Repair: 3-phase blue + IR, then red; Skin Sustain: blue/red + IR) plus Under-Eye Revive cooling-only routine; 3 chill levels; pause/resume
Details

Blemish Repair is called 'Skin Clearing' in the US 510(k).

Auto shut-off
Yes, mask and remote switch off after a session; LEDs auto-dim when mask is away from the face
Details

Not mentioned on the UK product page.

Design and power

Power
Rechargeable via USB-C cable (included)
Details

UK page lists 7.2 V, 16.92 W (peak 35 W). Whether a UK mains plug is included is not stated on the UK page (EU manual lists a charging plug).

Battery
Lithium-ion; battery life 138 minutes
Details

510(k): '2 Li-Ion Batteries 3.6V, 2350 mAh total'. EU manual says the battery is in the remote. Sessions per charge not stated.

Charge time
3 hours
Use while charging
— Not yet checked
Details

Not on UK page; UK manual not obtained.

Eye protection
Built-in silicone eye shields
Weight
740 g Conflicting information

Sources differ: 0.74 kg (Shark UK page) vs 680 g (John Lewis).

Details

Shark UK page: 0.74 kg; John Lewis: 680 g. Neither says whether remote/packaging is included.

App needed
No
Details

Controlled from the supplied remote with LCD screen; no app mentioned.

Subscription
No
Details

No app or paid features mentioned.

Replaceable battery
No
Details

EU/CH manual: do not try to open the remote or replace the battery. UK manual not obtained.

Values are as stated by Shark unless marked otherwise.

How much Shark publishes

11 of 12 key facts published

  • Wavelengths: published
  • LED count: published
  • Light output (irradiance): published
  • How output was measured: published
  • Treatment time: published
  • Warranty: published
  • Returns policy: published
  • User manual: published
  • Who should not use it: published
  • Safety standards declared: 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 Shark claims quoted, not verified

“Proven to reduce fine lines and to firm skin in 8 weeks*”

“Users saw 34% more radiant skin after 8 weeks*”

“Proven to improve blemishes in 4 weeks**”

“Users saw 21% improvement in blemishes in 4 weeks**”

“Users saw more even skin, and an improvement in the appearance of pores in 4 weeks**”

“Visibly tighter under-eyes in minutes with integrated InstaChill Technology.”

“iQLED Technology provides red, blue, and deep infrared light, developed with dermatologists”

“Clinically tested”

Context

Comparison chart on product page; no study linked.

Evidence

Better Ageing study — 59 subjects, 1x/day 6-minute treatment

Requested from manufacturer

What it measured and its limits

Only a footnote on the UK page ('8-week study with 59 subjects'); the EU/CH manual describes it as a 12-week study. No report, investigator or sponsor published. Shark science page (sharkclean.co.uk) returned 403. Ask Shark for the full report.

Blemish Repair study — 60 subjects, 1x/day 8-minute treatment

Requested from manufacturer

What it measured and its limits

Only a footnote on the UK page ('4-week study with 60 subjects'); the EU/CH manual describes it as a 12-week study. No report published. Ask Shark for the full report.

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.

Which?

UK · 16 Oct 2026 · tested

Included in Which?'s LED mask test (consumer panel, six weeks per mask, before/after 3D face scans analysed by a dermatologist). Ratings and verdicts are for Which? members only and are early results from two testers per mask. Price listed by Which?: £299.

Read the article ↗
HELLO!

UK · 11 Aug 2026 · tested

  • Four treatment modes; tester found the under-eye mode soothing
  • Remote tracks sessions
  • Under-eye cooling option
  • No specific drawbacks given
About this review

Roundup by Leanne Bayley; tested by an unnamed tester using the Blemish Repair routine. Quotes two prices (£259.99 and £269.99) and calls the mask FDA approved (it is FDA-cleared).

Read the article ↗
The Guardian (The Filter)

UK · 28 Oct 2026 · tested

  • Under-eye cooling built in
  • Four settings with a countdown timer
  • Red, near-infrared and blue light
  • Heavier than silicone masks
  • Cooling patches block light under the eyes
  • Audible whirr from the cooling
About this review

Under 'The best of the rest' (tagged 'Best for: fine lines and blemishes'). Lists 160 LEDs (the 510(k) says 480 LEDs in 160 packages), four settings, 4–8 min light, countdown timer. 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 ↗
Who What Wear UK

UK · 27 Apr 2026 · tested

Best for red and blue LED light

  • Red/near-infrared and blue treatments plus built-in under-eye cooling
  • Main treatments are short (6–8 minutes)
  • Controller tracks how many sessions you've done
  • Bulky to store
  • Cooling fans are noisy
About this review

Rated 9/10 by the publication. Deep Reviews roundup led by Eleanor Vousden; each mask tested by one team member for at least a month. Article carries an affiliate disclosure. Text supplied by the site owner.

Read the article ↗
Glamour UK (roundup)

UK · 7 Aug 2026 · tested

Best LED face mask with cold therapy

  • Under-eye cooling during the LED treatment
  • Comes with eye shields, a remote and a carry pouch
  • Remote clips to clothing
  • Cooling patches stop light reaching the under-eye area
  • Sits a little far from the face
  • Hard shell is less easy to pack
About this review

Lists '160 tri-wick LEDs', consistent with the 510(k)'s 480 LEDs in 160 packages. Says there is no countdown timer (the Guardian says there is). Roundup by Sophie Cockett (Senior European Commerce Editor), with testers named per mask. Article carries an affiliate disclosure. Its testing criteria quote The Light Salon's founders, and CurrentBody's CEO is listed among its experts. URL taken from The Light Salon's press page; text supplied by the site owner.

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British Vogue

UK · 29 Sept 2026 · tested

  • Four treatment modes, including under-eye cooling
  • Comfortable to wear
  • Battery life could be better
About this review

Listed without a category label, after the honourable mention. Lists 480 LEDs. Vogue's top pick is the newer CryoGlow Clinic, which is a different product. Roundup by Ellie Davis (senior beauty shopping writer); the article says each mask was tested by its editors for at least one skin cycle. Some entries repeat brand claims and celebrity mentions, which we leave out. Article carries an affiliate disclosure. Text supplied by the site owner.

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Women's Health UK

UK · 30 Oct 2026 · tested

Best guided LED mask

  • Screen on the controller guides fitting and programme choice, and logs sessions
  • Highly adjustable fit
  • Three levels of under-eye cooling
  • Noisier than other masks
  • Large and relatively heavy
  • Cooling pads take up space that could have LEDs
About this review

Lists the light as red, blue and 'deep infrared'; Shark states 830 nm near-infrared. Roundup by Florence Reeves-White, Jessica O'Donnell and Hattie Parish; each mask tested for at least a month. Article carries an affiliate disclosure. Text supplied by the site owner.

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The Independent (IndyBest)

UK · 15 Jul 2026 · tested

Best LED face mask for anti-ageing

  • Four settings, including under-eye cooling
  • Forehead and temple padding, adjustable straps and silicone eye shields
  • Tester saw softer smile lines after two months and less redness
  • Heavy
  • Short battery life: about every three days with daily use
About this review

Tested by Daisy Lester. Lists the light as red, blue and 'deep infrared'; Shark states 830 nm near-infrared. Roundup by Lucy Smith with two other IndyBest testers; each mask tested for at least six weeks. Article carries an affiliate disclosure. Text supplied by the site owner.

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Who What Wear UK (single review)

UK · 30 Oct 2026 · tested

  • Short sessions (6-minute Better Ageing) made daily use easy over 12 months
  • Under-eye cooling with three levels; adjustable straps and optional chill pads for fit
  • Remote clips on and logs completed sessions; charging about once a week with daily use
  • Bulky to store
  • Cooling fans are a little noisy
  • Results need consistent use
About this review

Long-term review by Eleanor Vousden (beauty editor), used for 12 months. Its spec list gives '1.5mW/cm irradiance' and calls 830 nm 'deep-infrared'; Shark's 510(k) and EU manual give 64–128 mW/cm² per mode and 830 nm near-infrared. Mentions the newer CryoGlow Plus (£340). Article carries an affiliate disclosure. Text supplied by the site owner; 'last updated 2 days ago' read as 30 Oct 2026.

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Cosmopolitan UK

UK · 7 Oct 2026 · tested

Best multi-purpose LED mask

  • Three cooling levels for the under-eyes, usable with or without the LEDs
  • Overhead straps keep it secure
  • Even light distribution; shields and dimming for the eyes
  • Bulky and one of the heaviest masks tested, so hard to travel with
About this review

Lists 480 LEDs, blue 415, red 630 and 830 nm infrared, 4–15 minutes. 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.

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The Standard (ES Best)

UK · 12 Oct 2026 · tested

Best overall LED face mask

  • Under-eye cooling pads alongside red, blue and near-infrared light
  • Comfortable, with adjustable treatment modes
  • Skin looked brighter and calmer with consistent use
  • Noisy
  • Bulkier than most; not one to pack for travel
  • Results were not dramatic
About this review

Rated 5/5 by the publication. Lists 480 LEDs, 8-minute treatment and 9–30 uses per charge. Roundup by Emma North (ES Best), each mask used consistently over several weeks. Article carries an affiliate disclosure. Text supplied by the site owner.

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WIRED (US)

US · 11 Aug 2026 · tested

Best LED Mask Overall

  • Under-eye cooling pads depuff during sessions
  • Adjustable straps and clip-on controller for hands-free use
  • Remote counts down time and tracks sessions
  • Noisier than most LED masks
  • Bulky hard shell; less travel-friendly
About this review

Tested over eight weeks by Verity Burns. Lists 160 tri-wick LEDs (480 light sources) and red irradiance 73 mW/cm², which matches Shark's EU manual. US buying guide by Boutayna Chokrane with several WIRED testers; prices in US dollars. Article carries an affiliate disclosure. Text supplied by the site owner.

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The Times (Luxx)

UK · 29 Aug 2026 · testing not stated

The morning LED mask

  • Built-in under-eye cooling for tired-looking eyes
About this review

Price quoted £259.99 at SharkNinja. Roundup by Rosie Davenport and Farah Thorndycraft; says picks are 'informed by expert editorial opinion' but doesn't describe hands-on testing. Its quoted expert, Dr Hany Abi Ghosn, has a skincare partnership with Omnilux (disclosed in the article). Article carries an affiliate disclosure. Text supplied by the site owner.

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Good Housekeeping UK (GHI)

UK · 28 Aug 2026 · tested

Best LED face mask overall

  • Under-eye cooling pads; easy to set up, no app
  • Short 6-minute sessions
  • Lab scored 4/5 on texture, fine lines and brown and red spots; battery lasted longer than most
  • Bulky to store
  • Some testers had no low-battery warning before it cut out
About this review

Score 92/100. Lists red as 640 nm (Shark: 630 nm). Good Housekeeping Institute test: 190 panellists used masks for at least four weeks, plus VISIA image analysis in the lab; each mask given a score out of 100. Article carries an affiliate disclosure. Text supplied by the site owner.

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British GQ

UK · 16 Jan 2026 · tested

Best LED face mask for acne

  • Dedicated blemish setting; tester with long-standing acne saw clearer skin and less scarring
  • Under-eye cooling
  • Heavy, so harder to move around in
About this review

Tested by Daphne Bugler. Its spec box gives '1x a week for 10 minutes', which doesn't match Shark's daily routines of 4–8 minutes. Men's grooming roundup by Adrian Clark, Jessie Atkinson and Daphne Bugler; each mask tried by a team member for at least the brand's suggested period. Article carries an affiliate disclosure. Text supplied by the site owner.

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ELLE UK

UK · 7 May 2026 · tested

Best multi-purpose LED mask

  • Red, near-infrared and blue light plus under-eye cooling, usable together
About this review

Short entry; price quoted £300 at Boots. Roundup by Amelia Bell and Clare Stephenson; over 15 masks tested for at least a month by the ELLE UK beauty team. Article carries an affiliate disclosure. Text supplied by the site owner.

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Yahoo Shopping (US)

US · 17 Sept 2026 · tested

Tested, not recommended

  • Hard plastic; 'not worth the hype' for the tester
About this review

One-line mention under 'Other LED face masks I tested'. US buying guide by Jennifer Romolini; six masks each worn for six weeks (two-week breaks) over ten months, per brand instructions. Mix of free samples and purchased products, as disclosed. Article carries an affiliate disclosure; prices in US dollars. Text supplied by the site owner.

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Marie Claire (US)

US · 9 Oct 2026 · tested

Best cooling at-home LED mask

  • Under-eye cooling pads, good for morning puffiness
  • Can be worn while doing other things
  • Four treatment plans under 10 minutes; adjustable strap
  • Chunkier than other masks
About this review

Tested by Beauty Director Hannah Baxter, who used it as maintenance after in-clinic treatments. Lists 4–8 minutes once a day, matching Shark. Price quoted $300 (was $349.99). US buying guide by Samantha Holender; 13 devices tested by independent testers and four editors for 10 weeks with fortnightly feedback, per brand directions. Article carries an affiliate disclosure; prices in US dollars. Text supplied by the site owner.

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CNET

US · 27 Aug 2026 · tested

Best overall LED face mask

  • LED plus under-eye cooling
  • Lightweight; quick sessions
  • Highest irradiance in its table (128 mW/cm²)
  • Cooling may not suit everyone
  • Cooling eye patches block light from the under-eye area
About this review

128 mW/cm² matches Shark's per-mode total. Lists 1.49 lb (about 676 g; Shark UK: 740 g) and calls 830 nm 'deep infrared'. Says both '$350, the cheapest on this list' and $299–300 at retailers. US buying guide by Nasha Addarich Martínez and Anna Gragert; masks chosen from brands with FDA clearance and tested by the authors. Article carries an affiliate disclosure; prices in US dollars. Text supplied by the site owner.

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Men's Health (US)

US · 30 Oct 2026 · tested

Best overall LED face mask

  • Four treatments of 4–8 minutes, plus under-eye cooling at three levels
  • Tester saw smoother, clearer skin and less redness; quickest effect on puffiness
  • Light felt less intense than others; no headaches for a light-sensitive tester
  • Attached controller has to be held, which limits multitasking
  • Bulkier than the Dr Dennis Gross mask
About this review

Won a 2025 Men's Health Grooming Award, as the article says. Price quoted $340 at Amazon. US men's grooming guide by Sean Zucker, reviewed by Christian Gollayan; masks picked with dermatologists, then each used for at least a month by Men's Health writers and editors. Article carries an affiliate disclosure; prices in US dollars. Text supplied by the site owner.

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Esquire (US)

US · 24 Mar 2026 · tested

Featured (no category label)

  • Easy-to-understand modes
  • Under-eye cooling at three levels, alone or with LED
  • Overhead straps hold it while walking around
  • Bulky; less sleek than others
  • Controller is corded to the mask
About this review

Says cooling time is 5–15 minutes, matching Shark's cooling-only option. Price quoted $340 at Amazon. US men's grooming guide by Garrett Munce; says the team tested the masks and judged efficacy, ease of use, comfort, time and price (testing length not stated). Article carries an affiliate disclosure; prices in US dollars. Text supplied by the site owner.

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The Guardian (The Filter)

UK · 31 Jul 2026 · tested

Recommended if you can't spend more

  • Works for both blemishes and anti-ageing
  • Intuitive presets
  • Cooling pads for under-eye puffiness
About this review

Mentions 'three preset treatments'; Shark lists three LED routines plus a cooling-only mode. 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.

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The Sun

UK · 10 Feb 2026 · tested

Best LED mask for brightening

  • Removable cooling eye patches; four settings
  • Short 6–8 minute sessions
  • LCD remote; two adjustable straps
  • Tester saw better texture and brighter skin over about a year
  • Heavy and bulky; slightly uncomfortable
About this review

Rated 9/10. Lists 160 LEDs (Shark's 510(k): 160 tri-wick packages, 480 LEDs; see conflicts) and a three-hour charge. Price quoted £299.99. Roundup by Sophie Bates and the Sun Shopping team; individual testers, test length varies by mask; each mask rated out of 10. Carries the line 'recommendations… informed by expert editorial opinion' and an affiliate disclosure. Text supplied by the site owner.

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HuffPost UK

UK · 6 Jul 2026 · tested

Best LED mask for blemishes

  • Comfortable
  • Less puffiness and fewer dark circles
  • Sessions from five minutes
  • Some find it heavy
About this review

Rated 4.7/5. Deputy editor Dayna McAlpine used it nightly for over a year and saw fewer hormonal breakouts. Repeats Shark's 'first in the UK' under-eye cooling claim. Price quoted £269.99 (was £299.99). Roundup by Honey Jane Wyatt; masks tested by HuffPost staff, friends and family 'for a series of weeks, if not months'; ratings out of 5. Article carries an affiliate disclosure. Text supplied by the site owner.

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HELLO!

UK · 11 Aug 2026 · tested

Featured: cryo results

  • Four routines; Under-Eye Revive soothes instantly
  • Remote counts completed sessions
About this review

Tried & tested by a 40-year-old tester on the Blemish Repair routine. Lists 480 LEDs, matching Shark's 510(k). Price quoted £269.99. Roundup by Leanne Bayley (updated 11 Aug 2026). Most entries are 'Tried & Tested' by a named HELLO! writer; some use a customer review instead. The article's only expert is Laura Ferguson, co-founder of The Light Salon, whose mask is listed first. Article carries an affiliate disclosure. Text supplied by the site owner.

Read the article ↗

Safety and regulation

Who shouldn't use it Shark's list

  • Photosensitising medication or supplements (e.g. isotretinoin, doxycycline)
  • Retinal/macular disease, ocular albinism, eye conditions causing light sensitivity, photophobia
  • Pregnant, nursing or possibly pregnant
  • Pacemaker or other implanted electronic device, or facial implants
  • Numbness; light-sensitive skin disorders (e.g. lupus, porphyria); light-induced headaches; albinism; melasma
  • Sensitivity/allergy to plastic, aluminium or self-fastening material
  • Recent facial surgery; suspicious lesions, skin cancer, eczema, psoriasis, irregular or changing brown spots, birthmarks, broken skin, rashes, blisters, inflammation, infections, cold sores, warts, active herpes
  • Recent facial treatments (neurotoxin, filler, microneedling, laser, chemical peel) until fully healed
  • Cooling: not with cold hypersensitivity, cold urticaria or circulatory insufficiency; not on the eyeball or upper eyelid
  • Consult a medical professional first if bruising on the face or irritation from retinol/benzoyl peroxide

Age: Not intended for use by children

Regulatory status

UK
UKCA Not yet checked
Details

UK product page does not mention UKCA, CE or FDA. UK manual/label not obtained.

UK
MHRA device registration Not yet checked
Details

MHRA told the BBC on 5 Nov 2025 that 'there are currently no LED face masks currently registered'. Registration can be checked on the MHRA Public Access Registration Database (PARD); not yet checked for this model.

EU
EU MDR: EU/CH manual states the device complies with Medical Device Regulation (EU) 2017/745 and carries the 'medical device' symbol; names an EU authorised representative Manufacturer-stated
Details

EU/CH version, not the UK model. Authorised representative name/notified body not extracted.

US
FDA 510(k) clearance: K242796 — 'CryoGlow (FW3XXXX)', SharkNinja Operating LLC; substantially equivalent, decision 2024-11-27; Class II, 21 CFR 878.4810, product codes OHS/OLP; OTC; predicate TheraFace K230293 Independently verified
Details

Read on accessdata.fda.gov. US status only — not a UK approval. Clearance was based on non-clinical bench testing and dose equivalence to the predicate; no clinical study is described. Cureus (per owner brief) also reports 510(k) clearance.

Safety standards declared (9)

IEC 60601-1, IEC 60601-1-2, IEC 60601-1-11, IEC 60601-2-83, IEC 62471, ISO 10993-1, ISO 10993-5, ISO 10993-10, ISO 10993-23

From US 510(k) summary; EU/CH manual also states 'Risk Group 1 per IEC 62471'. Test reports not published. UK manual not checked.

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
SharkNinja Europe Ltd, 1st/2nd Floor Building 3150, Thorpe Park, Century Way, Leeds, LS15 8ZB
Warranty
24 months
Details

UK page: 'Warranty: 2 years' / 'Up to 2-Year Guarantee'. UK warranty terms page (sharkninja.co.uk/warranties) returned 403 — conditions not read.

Returns
Free 30-day returns on main units (brand-site purchases)
Details

Hygiene/used-item conditions not checked; UK returns page not accessible. Retailer policies differ. Statutory rights also apply.

User manual
Yes
Details

User guide in the box. No public UK PDF found; Shark UK troubleshooting/care pages require login. Read instead: EU/CH multilingual manual (FW312CH) hosted by a Swiss retailer.

In the box

  • LED mask with adjustable straps
  • LED protective cover
  • Clip-on chill pads
  • Silicone eye shields
  • Remote control with LCD screen
  • USB-C charging cable
  • User guide
RetailerPriceCheckedLink
Shark (UK) £299.99 1 Nov 2026 Visit
John Lewis £269.99 1 Nov 2026 Visit
Amazon UKcolour not confirmed, listing B0DFWZQ1TQ Check price 1 Nov 2026 Visit
Amazon UKcolour not confirmed, listing B0FST227JM Check price 1 Nov 2026 Visit
Amazon UKcolour not confirmed, listing B0G723D19K Check price 1 Nov 2026 Visit
Amazon UKcolour not confirmed, listing B0GFWZ3M4Q Check price 1 Nov 2026 Visit
BootsLilac Chill £254.99 1 Nov 2026 Visit
BootsPink £260 1 Nov 2026 Visit
BootsBlue Frost £260 1 Nov 2026 Visit
BootsStrawberry Matcha £269.99 1 Nov 2026 Visit
BootsFrosted Green £299.99 1 Nov 2026 Visit

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

Other places sources disagree

  • Study length: UK page footnotes say 8-week (59 subjects) and 4-week (60 subjects) studies; EU/CH manual says 12-week studies with 59 and 60 subjects.

Open questions (12)

Facts we still need from Shark
  • Irradiance measurement method: distance, points measured, instrument? Does the UK model match the 510(k) figures?
  • 510(k) dose table lists e.g. 431.4 J/cm² Red/IR for Better Aging, which does not match 128 mW/cm² × 6.4 min — please explain.
  • Per-colour LED counts; peak vs dominant wavelength
  • UK user manual PDF (FW312UK) — please supply
  • UKCA marking and declaration of conformity; is the UK model registered with MHRA as a medical device (EU version claims MDR compliance)?
  • Is the UK unit identical to the US 510(k)-cleared FW3XXXX device?
  • Full reports of the 59- and 60-subject studies: design, control, investigator, sponsor; and are they 4/8-week or 12-week?
  • Does the 0.74 kg weight include the remote?
  • Sessions per full charge; usable while charging?
  • Age restrictions for the UK model
  • UK warranty terms and returns conditions for used beauty devices
  • Authorised UK retailers list; colour-to-code mapping for John Lewis 'Sage' and 'Spa Pink'

Sources (6)

Everything this page is based on
  1. LED mask ads banned over acne and rosacea claims, BBC News. Accessed 1 Nov 2026.
  2. Shark CryoGlow Under-Eye Cooling & LED Anti-Ageing & Blemish Repair Mask (FW312UKPR), SharkNinja UK. Accessed 1 Nov 2026.
  3. 510(k) K242796 — decision letter, Indications for Use and 510(k) Summary, CryoGlow (FW3XXXX), US FDA (submitted by SharkNinja Operating LLC). Accessed 1 Nov 2026.
  4. 510(k) Premarket Notification database entry K242796, US FDA. Accessed 1 Nov 2026.
  5. Shark CryoGlow user guide (FW312CH, multilingual EU/CH edition, Feb 2026) — German section read, SharkNinja, hosted by computerworks.ch. Accessed 1 Nov 2026.
  6. Shark CryoGlow FW312UK … Mask, Strawberry Matcha, John Lewis. Accessed 1 Nov 2026.

Spotted an error? Request a correction. Last researched 1 Nov 2026.

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