Head to head
Shark CryoGlow vs Dr Dennis Gross DRx SpectraLite FaceWare Pro
The two masks with the most magazine and newspaper reviews in our directory; both are rigid and include blue light.
By Richard P · Records last researched 1 Nov 2026. Built from each maker's published information. Luma Index hasn't tested either mask, and this isn't a ranking.
Shark
CryoGlow
£254.99 at Boots, checked 1 Nov 2026
630 / 830 / 415 nm · 4–8 minutes · 24-month warranty
Dr Dennis Gross
DRx SpectraLite FaceWare Pro
£372 at Lookfantastic, checked 1 Nov 2026
415 / 605 / 630 / 660 / 880 nm · 3 minutes · 12-month warranty
Key differences
- Only the Dr Dennis Gross DRx SpectraLite FaceWare Pro includes amber/yellow light.
- At our last checks, the Shark CryoGlow was £117.01 cheaper (£254.99 vs £372). Prices change; check the dates below.
- Sessions: 4–8 minutes for the Shark CryoGlow, 3 minutes for the Dr Dennis Gross DRx SpectraLite FaceWare Pro.
- Warranty: 24 months for the Shark CryoGlow, 12 months for the Dr Dennis Gross DRx SpectraLite FaceWare Pro.
- Only the Shark CryoGlow says how its light output was measured.
- Key facts published: 11 of 12 for the Shark CryoGlow, 8 of 12 for the Dr Dennis Gross DRx SpectraLite FaceWare Pro. This measures disclosure, not quality.
What they have in common
- Both include red, near-infrared and blue light.
- Both list 630 nm and 415 nm.
- Both are rigid masks.
- Both publish a light-output figure.
What isn't published
Shark CryoGlow
- Published study of this device
Dr Dennis Gross DRx SpectraLite FaceWare Pro
- How output was measured
- Safety standards declared
- Published study of this device
- UK company / contact
Neither maker publishes: Published study of this device. That makes those points impossible to compare.
Side by side
| Detail | Shark CryoGlow | Dr Dennis Gross DRx SpectraLite FaceWare Pro |
|---|---|---|
| Price and retailers | ||
| Lowest checked UK price | £254.99 at Boots, checked 1 Nov 2026 | £372 at Lookfantastic, checked 1 Nov 2026 |
| Retailers recorded | Shark (UK), John Lewis, Amazon UK, Boots | Space NK (UK), Cult Beauty, Lookfantastic |
| Light | ||
| Wavelengths | 630 / 830 / 415 nm | 415 / 605 / 630 / 660 / 880 nm |
| LED count | 480 | 160 |
| Light output (mW/cm²) | 128 | Blue 40; Red 75 (maximum intensity output) |
| How output was 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. | Not published |
| Dose per session (J/cm²) | Not published Not yet checked | Not published Not yet checked |
| Treatment | ||
| Session length | 4–8 minutes | 3 minutes |
| How often | Once daily for at least 8 weeks (Better Ageing or Blemish Repair), then Skin Sustain once daily to maintain | One 3-minute session daily Conflicting information |
| 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 | 3 settings: all red (anti-aging), all blue (anti-blemish), red + blue; one button |
| Design | ||
| Form | Rigid shell | Rigid shell |
| Power | Rechargeable via USB-C cable (included) | Internal rechargeable battery, 5 V, USB charging cord; USB power adapter not included (per manual) |
| Weight | 740 g Conflicting information | Not published Not disclosed |
| Eye protection | Built-in silicone eye shields | No goggles or eye shields supplied Conflicting information |
| App required | No | No |
| Subscription | No | No |
| Ownership | ||
| Warranty | 24 months | 12 months |
| Returns | Free 30-day returns on main units (brand-site purchases) | Buy from a UK retailer and return under that retailer's policy; the brand's 30-day returns (with $10 device fee) cover drdennisgross.com orders only |
| 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 | FaceWare Pro device, Adjustable silicone head strap, USB charging cord, Storage bag, User manual, Quick start guide Conflicting information |
| Evidence and safety | ||
| Published studies of this mask | 0 | 0 |
| US FDA 510(k) | K242796 Independently verified | None found |
| Who shouldn’t use it | 10 warnings listed | 8 warnings listed |
| Points where sources disagree | 4 | 6 |
| Key facts published | 11 of 12 | 8 of 12 |
Values are as stated by each maker unless labelled. Light-output figures are the makers' claims; few say how they were measured. What these numbers mean
What reviewers say
Shark CryoGlow
25 magazine and newspaper reviews recorded, 24 of them hands-on tests.
- Who What Wear UK: Best for red and blue LED light
- Glamour UK (roundup): Best LED face mask with cold therapy
- Women's Health UK: Best guided LED mask
- The Independent (IndyBest): Best LED face mask for anti-ageing
Dr Dennis Gross DRx SpectraLite FaceWare Pro
19 magazine and newspaper reviews recorded, 16 of them hands-on tests.
- HELLO!: Fast LED face mask (three minutes)
- The Guardian (The Filter): Best LED mask for quick treatments
- Forbes Vetted: Best Overall
- Glamour UK (roundup): Best LED face mask for wrinkles
Award labels are the publications' own. We summarise coverage; we don't score it.
Compare further
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