Red and infrared light: what it is, what it's used for, and why more and more people are using it

For years, artificial light has worked against us. Screens left on late, overly bright white bulbs, and constant stimuli that our bodies struggle to process. We live surrounded by light, but not always the right kind.

In this context, red and infrared light have begun to gain prominence. Not as a passing fad, but as a different way of relating to technology: using it to recover, rest, and reduce stimuli , instead of accumulating them.

At Krudo we have incorporated red light solutions because they fit with a very clear idea: if light can disrupt your rest and energy, it can also help you recover them.

What is red light and infrared light?

Red and infrared light are part of the light spectrum, but they behave very differently from the white or blue light we use daily.

Visible red light , typically between 630 and 660 nanometers, acts on the outermost layers of the body. Near-infrared light , which we cannot see but can feel, penetrates deeper into tissues, muscles, and joints.

They both have something in common: they don't stimulate the nervous system like blue light does. They don't activate. They don't accelerate. They don't "wake up" the brain. On the contrary, they create a more favorable environment for the body to enter repair and rest modes.

Why are more and more people using it?

The growing interest in red and infrared light isn't about exaggerated promises, but about a very real need: we're tired . Mentally, physically, and often without knowing exactly why.

Changing the type of light you are exposed to —especially at night or during recovery time— is one of the simplest ways to reduce that accumulated tiredness without adding more tasks to your routine.

Many people start simply by adjusting the lighting in their home, especially in the bedroom or in the hours before sleep. Others incorporate occasional infrared light sessions for physical recovery or stress relief.

What happens to the body when you are exposed to red light

At the cellular level, red and infrared light interact with mitochondria, which are responsible for producing energy within cells. When they receive this type of stimulus, their function becomes more efficient.

This doesn't translate into an immediate or dramatic effect. It becomes noticeable over time, in the form of better recovery, less stiffness, fewer persistent discomforts, and a greater ability of the body to self-regulate.

Simply put: it doesn't force the body to do anything new, it just makes it easier to do what it already knows how to do better .

Real and therapeutic applications

Red and infrared light have been used in therapeutic contexts for decades, long before they became available for domestic use.

In joint problems such as arthritis or chronic stiffness, it has been used to reduce inflammation and improve mobility. In people with persistent pain—back, neck, shoulders—infrared light has been used to help relieve deep tension and improve local circulation.

In the sports field, its use is widespread. After demanding workouts, controlled exposure to red and infrared light helps accelerate muscle recovery and reduce the feeling of overload.

It has also been used in tissue healing and regeneration processes, as well as in the dermatological field, where red light has been used for years to improve skin quality and reduce inflammation.

More recently, its impact on general well-being and the nervous system is being explored, especially in contexts of stress, mental fatigue, and difficulty switching off.

Red light bulbs: changing the atmosphere changes everything

Red light bulbs are the simplest way to introduce this technology into everyday life. They require no training or protocols. They simply replace a white light source with one that better respects the body's natural rhythms.

A clear example is Red Pulse , Krudo's red light bulb designed for nighttime use. It's used like a normal light bulb, but creates a much less stimulating environment for the nervous system, especially in bedrooms or spaces where the goal isn't to be energized, but to slow down.

Using a red light at night doesn't make you sleepy, but it sends your body a clear signal that it can start to shut down.

Red and infrared light panels: more conscious use

Red and infrared light panels are designed for specific moments, not for illuminating a room. They are used during short, controlled sessions focused on specific areas of the body.

The Krudo RS3 , for example, combines red and infrared light to work both superficially and deeply. It's a common tool in muscle recovery routines, tension relief, and body care, especially after training or on days with increased physical exertion.

It's not about using it every day or for long periods, but about integrating it meaningfully into a broader wellness routine.

Safety and responsible use

Red and infrared light are safe when used correctly. They do not generate harmful radiation or aggressive heat, but it is important to respect recommended exposure times and distances.

They do not replace medical treatments, nor are they intended to. They work best as complementary tools , integrated into a routine of rest, movement, and self-care.

Why does it fit with Krudo?

Krudo was created to reduce artificial stimuli, not to add more. First it was blue and red filter glasses. Now, it's light.

The principle is the same: use technology with intention, remove what is superfluous, and let the body breathe.

Red and infrared light fit with this philosophy because they don't promise miracles, force processes, or create dependency. They simply accompany.

Use light in a different way

For years, technology has pushed us to go faster and later. The red light represents the opposite: slowing down without disconnecting from the world .

It's not about doing more.
It's about getting better.
To end the day with less noise and more clarity.

If you want to start using light as a real tool for rest and recovery, you can discover Red Pulse , the red bulb for nighttime use, and Krudo RS3 , the red and infrared light panel for mindful recovery, on the Krudo website.

Visit krudostore.com and explore the red light collection.