Dr. Renú SpectraLift Advanced and Shark CryoGlow FW312, side by side. They share 630 nm; Dr. Renú SpectraLift lists 280 LEDs and Shark CryoGlow lists 160+. Published specifications only; neither is ranked.
Both list red and near-infrared light, the pairing used in several wrinkle studies.
Both list blue light, which acne studies paired with red.
Sessions differ: 10–15 min versus Programme-dependent; 8 min in baseline. Session time alone does not set the dose; output matters too.
Six studies match both, including why red light may calm inflammation: the mechanism review.
| Specification |  Dr. RenúSpectraLift Advanced |  SharkCryoGlow FW312 |
|---|---|---|
| Wavelengths | 465 · 530 · 630–660 · 850 nm | 415 · 630 · 830 nm |
| LED count | 280 | 160+² |
| Reported irradiance | Up to 50 mW/cm², by mode | Not found on checked page |
| Session | 10–15 min | Programme-dependent; 8 min in baseline |
| Fit | Flexible silicone · 300 g | Rigid shell · under-eye cooling |
| Power & controls | 2000 mAh · USB-C | Rechargeable; check regional manual |
| Regulatory claim | US platform FDA cleared, brand claim; EU CE under LVD/RoHS, not MDR medical-device marking | FDA cleared · CE/UKCA, as reported by LED Mask Specs |
| Reference price | €299Brand-supplied EU price, 31 Oct 2026 | US$349.99Manufacturer US page, 31 Oct 2026; LED Mask Specs EU reference €379.99 |
| Data origin | Manufacturer specifications and price | LED Mask Specs baseline; manufacturer page consulted |
LED count and output are not measures of effectiveness. Output figures use different, often unspecified measurement conditions. Prices keep their original currency and are not current offers.
The Dr. Renú SpectraLift lists 5 wavelengths and the Shark CryoGlow lists 3. More wavelengths is not the same as more effective.
Yes: 630 nm.
6 of the 15 summarised studies match both. 4 match only the Dr. Renú SpectraLift and 4 match only the Shark CryoGlow.
Values shown are nominal wavelengths. The manufacturer page now gives approximate channel peaks of 630 nm red, 458 nm blue, 517 nm green and 850 nm near-infrared, nine modes, and 10–15 minutes, 3–4 times weekly. Earlier figures listed a 26.9–50.0 mW/cm² mode range.
Manufacturer specifications and price.
² LED Mask Specs reports 160+ multi-zone LEDs. Count, wavelengths and EU reference price have not been independently validated here. Programme duration varies; consult the FW312 manual.
LED Mask Specs baseline; manufacturer page consulted.