Many users of the IN-light laser experience positive effects throughout their entire body. Not only do local symptoms improve, but overall health, energy, mood and even sleep are also enhanced. How is this possible with a small laser in the nose? In this blog, we explain how intranasal red light therapy, or systemic photobiomodulation, works and how it affects your entire body via the blood and mitochondria.

The nose is a unique point of entry into the body. The nasal mucosa is thin and the nose is full of capillaries, allowing laser light to come into direct contact with the blood. This makes the nose one of the most effective sites for intravascular light therapy.

The red laser light is absorbed through the nose by red and white blood cells, among other things. These cells then circulate throughout the body, carrying the effects of the light with them. This creates what is known as a “full body effect”.

There are also neurological benefits due to the systemic effect of red light. It is therefore not surprising that many people report sleeping better, feeling calmer or being able to think more clearly after using the IN-light.

Red light with a specific wavelength (as used in IN-light) stimulates an enzyme in the mitochondria: cytochrome C oxidase (CCO). This enzyme plays a key role in the cell's energy production.

When CCO is activated:

• More ATP (energy) is produced in cells;
• Free radicals are neutralised more effectively, reducing oxidative stress;
• More nitric oxide (NO) is released, which dilates the blood vessels and improves blood flow.

This provides organs and tissues with more oxygen and nutrients. It also improves the functioning of the immune system by directly activating white blood cells.

What makes this form of light therapy extra special is the discovery of so-called free floating mitochondria, which are mitochondria that float freely in the blood. Research shows that these “loose” energy factories float throughout the body and can absorb light when the blood is exposed to red or near-infrared light.

These mitochondria react just like in solid cells: they produce energy, reduce inflammation, improve cell communication and support the overall function of organs and the nervous system.

This explains why users of intranasal laser therapy sometimes experience improvements in areas not directly related to the nose or head, such as muscle recovery, reduced neuropathic pain, increased energy or a stronger immune system.

The effect of IN-light is therefore not limited to the site of administration. Because the blood, and therefore the stimulated cells, circulates continuously throughout the body, the positive effects reach every organ and tissue. It therefore has a full-body effect.

Users report, among other things:

• Better sleep;
• Less muscle pain after exercise;
• Faster recovery from fatigue or illness;
• Improved blood sugar regulation;
• Reduction in inflammatory symptoms;
• Greater mental clarity and calmness.

The effectiveness of intranasal photobiomodulation has been scientifically proven. You can read more about this on our science page, or on our indication page to find information about each complaint/benefit.

Intranasal red light therapy is much more than a local treatment. By stimulating mitochondria in the blood and even free-floating mitochondria, it supports the entire body. Through homeostatic effects and via the blood, mitochondria are stimulated throughout the body, including the organs. That is also why it is so beneficial for people suffering from Long Covid, diabetes and more.

Have you already experienced what IN-light can do for your entire body? Try it for yourself and discover the power of light, from within.