Benefits of red light therapy
Red light therapy (also known as photobiomodulation or RLT) is not a hype. Thousands of clinical studies have been conducted into the effects of red and near-infrared light, and the results consistently point in the same direction: it works, on multiple fronts simultaneously.
On this page, we list the scientifically proven benefits so you know exactly what to expect from the therapy.
How red light achieves its effect
Before we get to the benefits, a brief overview of how it works. When red light with the correct wavelength and intensity shines on your body, it activates the mitochondria in your cells, which in turn produce more energy in the form of ATP. This improved cellular energy is the basis for all the benefits listed below.
1. Better skin and more collagen
The most researched benefit. Red light stimulates fibroblasts, the skin cells responsible for producing collagen and other supporting fibers. This happens directly via ATP production in the cell, without hormones.
Practical result: fewer fine lines, firmer skin, and a more even complexion. People with fine lines, redness, or troubled skin often find that their skin becomes calmer and radiates more.
2. Faster muscle recovery and less pain
The body can recover faster after workouts, and people often experience less prolonged muscle soreness. Red light at 850 nm penetrates into muscle tissue and supports recovery capacity after exertion.
Additionally, the therapy helps regulate inflammatory responses. This makes it suitable for people with sensitive joints, stiff muscles, or minor aches and pains.
3. More energy
Red light therapy recharges the energy powerhouses of your cells. Because mitochondria work more efficiently, you will notice this in your daily energy levels, especially with regular use.
Several studies also show that red light is good for the brain, which is very rich in mitochondria.
4. Better sleep
A less known but relevant benefit. An evening session of red light therapy can contribute to a calmer evening routine: your body doesn't receive an "it's daytime" signal, allowing melatonin to rise as it should.
Unlike blue light from screens, red light doesn't disrupt your biorhythm; it supports it.
5. Support for the immune system
Improved circulation, reduced inflammation, and better cell functions contribute to a stronger sense of immunity. Red light therapy thus indirectly supports the immune system and helps the body cope better with daily stresses and strains.
6. Wound healing and tissue repair
Red light therapy promotes blood circulation, lymphatic function, and collagen production, making it widely applicable for both cosmetic purposes and accelerating wound healing.
What you need to see results
Benefits are only achieved with the right combination of factors: a wavelength between 630-670 nm (red) or 810-850 nm (near-infrared), sufficient light intensity at 15-30 cm distance, and consistent use of at least 3 to 5 times per week.
Health results are only achieved with the correct wavelength, the correct power, and regular use.
Safety
Red light therapy is widely considered safe. No UV radiation is emitted, and the treatment is non-invasive. In rare cases, slight redness or a warm sensation may occur after prolonged use. Do not look directly into the light, especially with powerful devices.
Do you want to know exactly how red light therapy works? Read our article on the working of red light therapy.
