There’s a lot said about red light therapy. We’ve collected the most common myths — and what’s actually true.
Below are 17 common statements in four topics. Each one is marked as a myth or a fact, with a short explanation.
Safety
The most common questions are about skin and eyes.
Where red light sits on the spectrum
Will red light therapy give me a tan?
No. A tan is your skin defending itself against UV radiation. The light used in red light therapy doesn’t trigger that response.
Does it damage my skin the way the sun does?
No. It contains no UV — the part of sunlight that damages skin. Red light may even support your skin’s natural collagen production.
Can it hurt my eyes?
Yes, if it shines straight into them. That’s the current consensus, so protect your eyes: close them or wear goggles. There’s a pair in every RedLightMed box.
It’s radiation — can it cause cancer?
No. Red and near-infrared light is non-ionising: unlike UV or X-rays, it doesn’t carry enough energy to damage DNA.
How it works
What actually happens when you switch the panel on?
How deep the light reaches
Can’t any red lamp do the same job?
No. A red bulb is just coloured light. Red light therapy uses specific wavelengths: roughly 630–660 nm in the red range and 810–850 nm in the near-infrared.
Does it matter which device I buy?
Yes, a lot. Devices differ widely in wavelengths, real output and coverage. Compare the light intensity measured at a stated distance, not the number of LEDs.
Is it basically a sauna — does it work through heat?
No. An infrared sauna heats your body up. In red light therapy your cells absorb the light itself; all you feel on your skin is mild warmth at most.
Are red and near-infrared light the same thing?
No. Red light mainly reaches the upper layers of the skin, while near-infrared — barely visible to the eye — travels deeper. That’s why a good panel combines both.
Where did red light research start?
In Budapest. In 1967, Endre Mester at Semmelweis University discovered the biological effects of low-power light. NASA later funded research too, and today there are thousands of studies.
Éva Haris answers
nutrition expert
Results
What to realistically expect — and what not to.
Light works on a sweet-spot curve
Is a longer session better?
No. Light works on a sweet-spot curve: too little isn’t enough, too much doesn’t add more. Sessions of 10–30 minutes are ideal, with no more than 30 minutes a day on one area.
Will I see results after one session?
Not in the way you’d hope. Red light therapy is about consistency: think in weeks, as part of your daily routine — just like exercise.
Does it melt fat?
No. Red light therapy isn’t a weight-loss method. It can fit well into an active, balanced lifestyle, but it doesn’t replace exercise or mindful eating.
Is it a medical treatment that cures illnesses?
No. At-home red light therapy is a wellness routine, not a medical treatment, and it doesn’t replace your doctor. If you have a health concern, ask your doctor first.
Using it
A few simple rules to get the most out of it.
Distance changes the intensity
Does the distance matter?
Yes. The closer you are, the stronger the light — from further away you may need a longer session. The recommended distance is 8–50 cm; the user guide helps with the exact setup.
Does it work through clothes?
Not as well. Fabric absorbs and scatters a large part of the light. It works best on clean, bare skin.
Can I use it in the evening?
Yes. The light that interferes most with evening melatonin is blue — red sits at the opposite end of the spectrum. That’s why many people make it part of their evening routine.
Can anyone use it, anytime?
No. It isn’t recommended for children under 12, while breastfeeding, with epilepsy, with known tumours or metastases, or if you’re sensitive to light. During pregnancy, only after talking to your doctor.
Why RedLightMed?
Now you know what to look for. Here’s what you get with our panels.
High irradiance
Measured at 10 cm, so you know exactly what the panel delivers.
Red + near-infrared
610, 630, 660, 810, 830 and 850 nm in one panel.
Certified quality
Certified devices, quality-checked in Hungary.
Premium design
Clean lines, touch panel and voice control, adjustable brightness and timer.
Warranty
Smart Small 2 years, Smart Medium 3 years — with service from our Hungarian team.
Easy returns
Changed your mind? Send it back within 30 days of delivery.
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