Dr. Renú SpectraLift Advanced and Silk’n LED Face Mask 100, side by side. They share no listed wavelengths; Dr. Renú SpectraLift lists 280 LEDs and Silk’n Face Mask 100 lists 100. Published specifications only; neither is ranked.
Near-infrared is the clearest difference: only the Dr. Renú SpectraLift lists it. Near-infrared (around 830–850 nm) appears in wrinkle and recovery studies, usually paired with red.
Both list blue light, which acne studies paired with red.
Sessions differ: 10–15 min versus 10 min; page also lists 15 min. Session time alone does not set the dose; output matters too.
One studies match both, including red light and collagen density: a 136-person controlled trial.
| Specification |  Dr. RenúSpectraLift Advanced |  Silk’nLED Face Mask 100 |
|---|---|---|
| Wavelengths | 465 · 530 · 630–660 · 850 nm | 463 · 592 · 633 nm |
| LED count | 280 | 100 |
| Reported irradiance | Up to 50 mW/cm², by mode | 13.23–89.68 mW/cm² |
| Session | 10–15 min | 10 min; page also lists 15 min |
| Fit | Flexible silicone · 300 g | Semi-rigid, baseline description |
| Power & controls | 2000 mAh · USB-C | Rechargeable controller |
| Regulatory claim | US platform FDA cleared, brand claim; EU CE under LVD/RoHS, not MDR medical-device marking | CE cosmetic-device claim in baseline; FDA status not verified |
| Reference price | €299Brand-supplied EU price, 31 Oct 2026 | €160Manufacturer EU page, 31 Oct 2026 |
| Data origin | Manufacturer specifications and price | Manufacturer wavelengths, output, LED count and price; baseline remaining fields |
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 Silk’n Face Mask 100 lists 3. More wavelengths is not the same as more effective.
No exact wavelengths in common, although some may sit in the same colour band.
1 of the 15 summarised studies match both. 9 match only the Dr. Renú SpectraLift and 0 match only the Silk’n Face Mask 100.
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.
Manufacturer lists red 25.04, blue 89.68, yellow 13.23 and purple 77.95 mW/cm². Purple blends red and blue. This corrects the baseline’s missing-output label. Measurement conditions are not harmonised across brands.
Manufacturer wavelengths, output, LED count and price; baseline remaining fields.