Dr. Renú SpectraLift vs Shark CryoGlow
Dr. Renú SpectraLift and Shark CryoGlow compared on published specifications. Both use the same technology (LED light therapy mask), so the differences are in wavelengths, output, form, routine and price. Dr. Renú SpectraLift: 465 · 530 · 630–660 · 850 nm, session 10–15 min, €299. Shark CryoGlow: 415 · 630 · 830 nm, session Programme-dependent (8 min in baseline source), US$349.99.
Side by side
| Dr. Renú SpectraLift | Shark CryoGlow | |
|---|---|---|
| Type | LED | LED |
| Technology | LED light therapy mask | LED light therapy mask |
| Wavelength | 465 · 530 · 630–660 · 850 nm | 415 · 630 · 830 nm |
| Reported output | Up to 50 mW/cm², by mode | Not found on checked page |
| Form and coverage | Full-face flexible silicone mask, 280 LEDs, 300 g | Full-face rigid shell with under-eye cooling, 160+ LEDs |
| Session | 10–15 min | Programme-dependent (8 min in baseline source) |
| Schedule (brand) | 3–4 times a week | Not found on checked page |
| Reference price | €299 | US$349.99 |
| FDA 510(k) | K253712 Matched by model or device name | K242796 Record names this device |
Key differences
- Both are LED masks using LED light therapy mask.
- Wavelengths: Dr. Renú SpectraLift 465 · 530 · 630–660 · 850 nm; Shark CryoGlow 415 · 630 · 830 nm (shared: 630 nm).
- Sessions: Dr. Renú SpectraLift 10–15 min; Shark CryoGlow Programme-dependent (8 min in baseline source).
- Reported output: Dr. Renú SpectraLift Up to 50 mW/cm², by mode; Shark CryoGlow Not found on checked page.
- Reference price: Dr. Renú SpectraLift €299; Shark CryoGlow US$349.99 (different currencies, not converted).
- FDA record: Dr. Renú SpectraLift K253712 (matched by model or device name); Shark CryoGlow K242796 (record names this device).
What the differences mean
Both use the same technology (LED light therapy mask), so the differences are in wavelengths, output, form, routine and price.
An LED mask covers the face with many light-emitting diodes. The light is not intended to heat skin. Red and near-infrared light are studied for photobiomodulation, which may increase collagen; 415 nm blue light is studied for acne because it affects acne bacteria.
Dr. Renú SpectraLift
Dr. Renú stands out for transparency: the SpectraLift Advanced publishes per-mode output figures that most brands leave out, and pairs red, near-infrared, blue and green light with a lightweight silicone fit and the lowest LED-mask reference price here.
Suited to: Wanting published output figures before buying; Comparing on price within the LED masks.
Shark CryoGlow
Shark brought mainstream engineering to LED masks: the CryoGlow combines blue, red and near-infrared light with a cooling under-eye panel no other device here offers, and its FDA record names the CryoGlow family directly.
Suited to: Wanting blue, red and near-infrared in one mask; Interest in under-eye cooling.
Research matching both
- A sham-controlled trial of a red LED mask: two sessions a week seemed enough Randomised, sham-controlled, double-blind · 2025
- Red and near-infrared light and cancer risk: what a systematic review found Systematic review · 2023
- Red and amber LED light both reduced eye-wrinkle volume by about 30% Randomised split-face trial · 2023
- Low-level light therapy: a reasonable evidence base, with gaps Review · 2021
- What 31 randomised trials say about LED light for skin Systematic review of 31 RCTs · 2018
- Home laser and light devices: what dermatologists found in the evidence Literature and FDA database review · 2015
- Red light increased collagen density against an untreated control Randomised controlled trial · 2014
- 830 nm, 633 nm or both? A double-blind, sham-controlled LED trial Randomised, placebo-controlled, double-blind, split-face · 2007
- The early clinic study behind red plus near-infrared LED masks Clinical study, no control group · 2005
Frequently asked questions
What is the main difference between Dr. Renú SpectraLift and Shark CryoGlow?
Both use the same technology (LED light therapy mask), so the differences are in wavelengths, output, form, routine and price.
Which is cheaper, Dr. Renú SpectraLift or Shark CryoGlow?
Their reference prices are in different currencies (€299 and US$349.99) and we do not convert them. Check current prices on the manufacturer pages.
Which has more research behind it?
Of the studies we explain, 9 match Dr. Renú SpectraLift’s technology and wavelengths and 11 match Shark CryoGlow’s. Matching studies did not necessarily test these models.