Circadian Timing01Light Is A Biological Clock
Specific wavelengths help the body understand time. Morning light, UVA, visible light, red and near-infrared all participate in biological timing, alertness, hormonal rhythm and mitochondrial readiness.
The Future of Light Therapy
We Copy The Sun.
Your biology runs on sunlight. Indoors, it barely reaches you. We bring the whole spectrum back — UV to deep infrared, not just red — a full day of sun, wherever you live.
Explore Now
REDelios ONE
Full-Spectrum™ 3.0
Dawn — The First Signal
Every morning, the full spectrum of light returns. Biology has been waiting for it.
297nm1280nm
THE FULL SPECTRUM OF NATURAL LIGHT
The Evidence BaseMainstream Medicine Skipped It.
Mainstream Medicine Skipped It.
Science Didn't.
12,000+ peer-reviewed studies on photobiomodulation — 150 graded and indexed here, with their limitations stated.
PubMed, search: photobiomodulation · July 2026
NASA/Harvard Medical School/Massachusetts General · Wellman Center/University College London/UT Austin/University of Edinburgh
Open The Research LibraryThe Science Series
The Science Series
Four Films Exploring The Biology Of Light297nm1280nm
The Full SpectrumSunlight Is An Orchestra.
Sunlight Is An Orchestra.
Not A Note.
Every wavelength interacts with biology differently.
Tap a wavelength to see what it touches.
One Signal.
Many Outcomes.
Watch The StorySleep
Recovery
Energy
Skin Quality
Performance
Focus
Resilience
Longevity
The Rhythm Of A Day
Light Has Timing.
Morning, midday and evening light carry different biological messages. Your light should too.
Watch Timing ModesThe Collection
The Devices Of Light
Three devices. One philosophy. One biological language.
Watch Devices Film
01 · The FlagshipThe Full Spectrum System
REDelios ONE
Ten wavelengths from UV to deep near-infrared, three circadian modes and pulse technology — the complete biological light device, engineered to copy the spectrum of an entire day.
10 Wavelengths297–1280nmCircadian ModesPulse Tech
€1,586.95Explore REDelios ONE
02 · SkincareredPINK
Precision Light For Skin
Blue + Red + NIR405·630·660·810nmFacial
Clinical blue, red and near-infrared light for collagen, tone and visible skin quality.
Explore redPINK
03 · TargetedredZEN
Light Where You Need It
Targeted6 Wavelengths630–850nmPortable
Targeted red and near-infrared light that fits any lamp — recovery exactly where you need it.
Explore redZEN
Blue Light Blocking
Block The Light
You Don't Want.
Screens and LEDs flood your eyes with artificial blue light long after the sun has set. Our lenses hand the signal back to biology — focus by day, melatonin by night.
Shop All Eyewear
DaytimeYellow Glasses
Blocks 85% Blue Light
Daytime defense for screens and LED light — sharper focus, calmer eyes, easier evenings.
380–500nmUV400Anti-glare
EveningRed Glasses
Blocks 100% Blue Light
The evening glasses — block 100% of blue and green, passing only therapeutic red to protect melatonin and sleep.
Passes 630–650nmUV400Sleep
The Difference
Most Build A Light.
We Build A Biological Device.
The same hardware can be engineered for marketing numbers — or for the way biology actually reads light.
The CategoryReference
Most Light Devices
Mass-produced consumer products
Usually based on 2–6 wavelengths
Built around LED hardware, not biology
Generic one-size-fits-all protocols
Focused mainly on red and near-infrared light
Designed for output, intensity and marketing numbers
Limited clinical background behind product design
Made to be sold at scale
2–6 wavelengths
Redlight.doctorThe Device
REDLIGHT.DOCTOR
17 Years ClinicalPublished ScienceWhole-System
Precisely developed over years
Backed by 17 years of clinical experience
Grounded in decades of published research
Multiple biologically relevant wavelengths
Designed around nature’s signalling logic
A whole-system approach
Built for meaningful impact
Full biological spectrum297–1280nm
Filip & Dominik Dušek
ENDALA · The clinic of light
The people behind the light
Founded by a father and a son.
REDelios ONE didn’t come from a warehouse — it came from a clinic. Seventeen years, thirty thousand clients. Filip Dušek built the light he wished he could give the people in front of him; his son Dominik exists to put it in yours.
- 30-Day Home Trial
- 2-Year Warranty
- CE · Tested
- Free EU Shipping over €150
- Secure Checkout
Everyone Else Copies Technology.
We Copy Nature.
Because biology was not built under screens, isolated diodes or artificial indoor light. It evolved under the Sun: timed, layered, spectral and alive with information.
REDLIGHT.DOCTOR is built from that principle.
Not one wavelength. Not one protocol. Not one target.
A biological light system inspired by the original source code of life.
First Principles
Three Truths
About Light.
Everything we build rests on three things biology has always known about light — and modern life forgot.
Circadian Timing01
Cellular Energy02Mitochondria Respond To Photons
Red and near-infrared wavelengths interact with mitochondrial systems involved in energy production, water structuring, redox balance and cellular resilience.
Full Spectrum03The Spectrum Matters
A single wavelength can create a signal. A spectrum creates context. Biology reads light through timing, dose, wavelength, environment and state.
The Journal
Of Light
Essays, science notes and protocols for people who want to understand light as biology.
Explore The Journal
01Mitochondria, Water
And The Photon
Light doesn't stop at the skin. It reaches the engines of the cell and quietly changes how energy is made.
Read Essay8 min
02Why The Spectrum
Beats The Single Diode
Biology rarely responds to a single input. Layered wavelengths outperform isolated ones.
Read6 min
03Morning Light And
The Cortisol Curve
A practical morning protocol for aligning energy, alertness and your circadian rhythm.
Read4 min
04Full Spectrum vs
Red + Near-Infrared
Most panels emit only half the sun. Why a true full spectrum — including UV — matters.
Read More8 min
Full DaylightThe Sun Never Disappeared.
The Sun Never Disappeared.
We Did.
Discover the technology designed to bring biological light back into modern life.