LED face masks · head to head
Two of the nine LED face masks in our comparison table, side by side. Every figure below is one the manufacturer publishes itself; where a brand stays silent the cell says so.
The short answer
The Dr. Renú SpectraLift™ Advanced emits at 465 nm, 530 nm, 630–660 nm, 850 nm. The Shark CryoGlow (FW312) emits at 415 nm, 630 nm, 830 nm. Both cover red and near-infrared, the two ranges with the strongest published evidence for skin.
Only the Dr. Renú SpectraLift™ Advanced publishes an irradiance figure (up to 50 mW/cm²). The Shark CryoGlow (FW312) does not, so the dose the two masks deliver cannot be compared.
Side by side
| Specification | Dr. Renú SpectraLift™ Advanced | Shark CryoGlow (FW312) |
|---|---|---|
| Wavelengths | 465 nm530 nm630–660 nm850 nm | 415 nm630 nm830 nm |
| LEDs | 280 | 160+ (multi-zone) |
| Published irradiance | Up to 50 mW/cm² | Not published |
| Dose per session | up to 30 J/cm² | — |
| Session | ~10 min | 8 min |
| Modes | 9 selectable modes | 3 targeted programmes + under-eye cooling |
| Regulatory | FDA 510(k) K253712, Class II · CE · ISO 13485 · IEC 60601 · IEC 62471 | FDA cleared · CE/UKCA |
| Fit | Flexible silicone, 300 g | Rigid, multi-zone |
| Power | Rechargeable 2000 mAh USB-C | Corded USB-C (cooling needs power) |
| Price (EU) | €349.00 €1.25 per LED | €379.99 €2.37 per LED |
“Published irradiance” means the brand prints an output figure on its own product page. “FDA cleared” is not “FDA approved” — see the questions below.
Where they differ
Evidence notes
The Dr. Renú SpectraLift™ Advanced uses 280 LEDs at 465 nm, 530 nm, 630–660 nm, 850 nm, in sessions of ~10 min.
Publishes an irradiance figure and states spectrometer testing. Its own efficacy testing is brand-run. The 465 nm blue and 530 nm green are less evidenced than the red and near-infrared.
The Shark CryoGlow (FW312) uses 160+ (multi-zone) LEDs at 415 nm, 630 nm, 830 nm, in sessions of 8 min.
Two disclosed brand-run 12-week studies — more published data than most rivals here. The under-eye cooling is a comfort feature, not a light mechanism.
Questions
The Dr. Renú SpectraLift™ Advanced emits at 465 nm, 530 nm, 630–660 nm, 850 nm. The Shark CryoGlow (FW312) emits at 415 nm, 630 nm, 830 nm. Both cover red and near-infrared, the two ranges with the strongest published evidence for skin.
Only the Dr. Renú SpectraLift™ Advanced publishes an irradiance figure (up to 50 mW/cm²). The Shark CryoGlow (FW312) does not, so the dose the two masks deliver cannot be compared.
The Dr. Renú SpectraLift™ Advanced carries more diodes: 280 against 160. Diode count sets how evenly light reaches the face — a coverage figure, not an efficacy figure.
Dr. Renú SpectraLift™ Advanced: FDA 510(k) K253712, Class II · CE · ISO 13485 · IEC 60601 · IEC 62471. Shark CryoGlow (FW312): FDA cleared · CE/UKCA. Clearance under section 510(k) means the manufacturer showed substantial equivalence to a device already on the market and met safety standards — it is not FDA approval, and it is not evidence of efficacy.
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