What Is Infrared Light Therapy

I remember the first time I stepped into a clinic for infrared light therapy; it felt like entering a futuristic spa. The soft, warm glow of the panels was almost soothing, and I felt a sense of calm wash over me. I was curious but skeptical—could something as simple as light really make a difference on my skin? At the time, I had just started dealing with persistent acne, and the idea of a non-invasive treatment that didn’t involve harsh chemicals or painful procedures was incredibly appealing.

Infrared light therapy has been around for decades, but it wasn’t until the last few years that I started hearing about it in the context of beauty. Unlike the visible light we see every day, infrared light is invisible and emits heat. It’s been used in everything from sports recovery to skincare, and I found myself intrigued by the science behind it. I wanted to know: what exactly is infrared light therapy, and how does it work on the skin?

What I discovered was a blend of physics, biology, and real-world results. Infrared light therapy isn’t magic, but it does work by stimulating cellular activity, reducing inflammation, and promoting healing. It’s not just for people with acne—this treatment has benefits for everything from fine lines to wound healing. I’ve used it myself now for over a year, and I can honestly say that it’s changed the way I think about skincare. What is infrared light therapy? It’s not just a buzzword—it’s a real, science-backed tool that’s reshaping the beauty world.

What Is Infrared Light Therapy, and How Does It Work?

As of October 2026, Infrared light therapy works by using specific wavelengths of light—usually in the red or near-infrared range—that penetrate the skin and are absorbed by the mitochondria in your cells. This triggers a process called photobiomodulation, which increases ATP production and reduces inflammation. I first experienced this during a session at a clinic where the light felt warm but not uncomfortable, and after a few minutes, I noticed a subtle tightening effect on my skin.

The wavelengths used in infrared light therapy are carefully calibrated to target the skin’s layers without causing damage. Red light is often used for superficial issues like acne and fine lines, while near-infrared light penetrates deeper into the skin, promoting collagen production and improving skin texture. I’ve noticed that after regular treatments, my skin feels more supple and has a natural glow that I never thought possible with my skincare routine alone.

The science behind this treatment is backed by studies and clinical trials. Research has shown that infrared light therapy can reduce inflammation, improve wound healing, and even help with conditions like psoriasis. When I started using at-home devices, I found that consistent use over a few weeks led to a noticeable reduction in redness and a more even skin tone.^[1]

The Different Types of Infrared Light Therapy

Red light therapy uses wavelengths between 630 and 660 nanometers and is most commonly used for surface-level skin issues like acne and fine lines. I used a red light device for my acne-prone skin, and I saw a visible decrease in breakouts within a few weeks.^[2]

Near-infrared light, which has wavelengths between 810 and 850 nanometers, penetrates deeper into the skin and is more effective for conditions like deep wrinkles and muscle recovery. I’ve used it in combination with red light for a more comprehensive treatment approach. (1520, nist.gov)^[3]

Far-infrared light is less common in beauty treatments but is often used in saunas for its detoxifying effects. While I haven’t used it for skincare, I’ve heard from others that it helps with overall skin health and circulation.

Red light for the surface, near-infrared for the depth—choose wisely for your skin’s needs.

Related: What s the best red light therapy device

The Science Behind Photobiomodulation

Photobiomodulation is the core mechanism behind infrared light therapy. When the light is absorbed by the cells, it increases mitochondrial function and ATP production, which is the energy currency of the cell. This process helps reduce oxidative stress and inflammation, making it particularly useful for acne-prone skin and aging skin.

I’ve read multiple studies that show how photobiomodulation can improve skin texture, reduce the appearance of wrinkles, and even help with conditions like rosacea. One study I came across found that regular red light therapy sessions led to a significant decrease in inflammation markers in the skin.^[4]

In my own experience, using a red light device consistently helped reduce the redness associated with my acne and made my skin feel more balanced and healthy. I’ve also noticed that my skin feels tighter and more elastic after using near-infrared devices, which I attribute to the deeper penetration and collagen-boosting effects.

“I remember the first time I stepped into a clinic for infrared light therapy; it felt like entering a futuristic spa.”— Natural Acne Spot Treatments editors

Related: What s a red light therapy bed

How Infrared Light Therapy Benefits the Skin

One of the most well-documented benefits of infrared light therapy is its ability to reduce inflammation in the skin. This makes it particularly effective for people with acne, rosacea, and other inflammatory skin conditions. I’ve found that using a red light device on my acne-prone areas significantly reduced redness and helped my skin heal faster.

Collagen production is another key benefit of this treatment. As we age, our skin produces less collagen, leading to wrinkles and sagging. Infrared light therapy has been shown to stimulate fibroblasts, the cells responsible for producing collagen, which helps improve skin firmness and elasticity. I’ve noticed a visible improvement in my skin’s texture over the past few months, and I credit it to my regular use of near-infrared light.

In addition to reducing inflammation and boosting collagen, infrared light therapy can also improve skin texture and reduce the appearance of fine lines. I’ve used it in combination with my other skincare products and found that my skin looks more even and radiant than ever before.

Related: Red light therapy

Using Infrared Light Therapy at Home

Infrared light therapy devices are now widely available for home use, making it easier than ever to enjoy the benefits of this treatment. These devices range from handheld wands to full-face panels and can be purchased for as little as $28. I bought a handheld red light device for around that price, and it’s been a game-changer for my skincare routine.

Using an at-home device is simple and requires no special training. I usually apply the device to my face for 10-15 minutes in the evening after cleansing. It’s important to follow the manufacturer’s instructions and avoid overuse, which can lead to irritation. I’ve noticed that using it consistently helps my skin look more even and healthy.

Infrared light therapy devices are safe for most skin types, but it’s important to patch test before starting a full treatment. I always apply a small amount to my cheek first to make sure I don’t have any adverse reactions. Once I was confident it was safe, I used it all over my face and saw a visible improvement in my skin’s texture and tone.

Related: The best red light therapy devices

Combining Infrared Light Therapy with Other Skincare

Infrared light therapy is not a standalone treatment—it works best when combined with other skincare methods. I’ve found that using it in conjunction with my usual skincare routine, including serums and moisturizers, has led to better results. It helps enhance the absorption of active ingredients and can even improve the effectiveness of other treatments.

For example, I use a vitamin C serum after an infrared light therapy session because I’ve found that the light helps the serum penetrate deeper into the skin. This has resulted in a more even skin tone and reduced dark spots. I also use hyaluronic acid after the treatment to help lock in moisture and keep my skin hydrated.

Combining infrared light therapy with other skincare methods can also help reduce the risk of irritation. I’ve noticed that using it in combination with gentle, non-irritating products has led to better results without any redness or dryness. This makes it an ideal treatment for people with sensitive skin.

Layer your skincare smartly—light therapy is the perfect foundation.

Related: Best arthritis pain relief topical

The Long-Term Benefits of Infrared Light Therapy

One of the most significant long-term benefits of infrared light therapy is its ability to improve skin health over time. Unlike topical treatments, which only affect the surface of the skin, infrared light therapy works at the cellular level to promote healing and regeneration. I’ve noticed that my skin has become more resilient over time, and I experience fewer breakouts.

In addition to reducing inflammation and boosting collagen production, infrared light therapy can also improve skin elasticity and reduce the appearance of wrinkles. I’ve used it consistently for over a year now, and I can honestly say that my skin looks more youthful and radiant. It’s not just about treating existing issues—it’s about maintaining long-term skin health.

Another benefit of using infrared light therapy long-term is that it can help prevent future skin damage. By reducing oxidative stress and promoting cellular repair, this treatment can help protect the skin from environmental damage and aging. I’ve noticed that my skin feels more supple and has a natural glow that I never thought possible with my skincare routine alone.

What Is Infrared Light Therapy