Feeling like your body throws inflammation tantrums at the worst possible moment? Same. So, does Red Light Therapy help with inflammation? Short answer: yes, it can calm swelling and support healing, but it’s not magic. If you’d like to know why so many people swear by it and what the science actually says, keep reading.

Does Red Light Therapy Get Rid of Inflammation?
People often discover Red Light Therapy during a flare-up, whether it’s an angry knee, a stiff back, or a tendon that refuses to behave after the gym. Many also end up exploring it because traditional painkillers only offer short-lived relief. RLT stands out because it doesn’t just mute symptoms for a few hours. It gets involved at the root of the inflammation process and supports the environment your cells need to repair themselves. This is also why red light therapy for pain has grown so popular; pain and inflammation are closely linked.
Yes, It's One of Its Most Powerful and Well-Researched Benefits
Among all the perks of RLT, inflammation control is one of the most consistently backed by research. Scientists view inflammation reduction as a primary therapeutic effect of photobiomodulation, not an accidental bonus. That’s why people searching for the best red light therapy for inflammation look for devices that deliver clinically validated wavelengths and sufficient intensity.
The Science: How RLT Calms Inflammation at a Cellular Level
What makes RLT different from a painkiller like ibuprofen is that it doesn’t just block inflammatory signals; it helps balance them. Think of inflammation as your body’s alarm system. Sometimes that alarm stays stuck on loud mode. RLT helps reset it by improving cellular efficiency and reducing the internal chaos driving the inflammation.
Mechanism 1: Reducing Inflammatory Cytokines
Your body calls in cytokines whenever it senses injury or irritation. The problem is that sometimes it calls in too many. RLT helps temper this response, especially the cytokines responsible for chronic or excessive inflammation.
Mechanism 2: Combating Oxidative Stress
Inflamed tissues often drown in free radicals, which slow down healing and increase discomfort. RLT boosts antioxidant activity and helps clear those irritants. Less oxidative stress means a calmer environment for repair.
Mechanism 3: Increasing Circulation to Clear Inflammatory Byproducts
Good circulation is essential for reducing swelling. RLT helps blood flow more efficiently so waste products can clear out faster and fresh oxygen can reach stressed tissues.
Mechanism 4: Boosting ATP to Help Cells Resist Stress
ATP is the energy that fuels cell repair. When RLT stimulates mitochondrial activity, ATP production rises. That boost gives cells the energy they need to recover from irritation and inflammation more quickly.

Targeting Different Types of Inflammation
Inflammation isn’t one-size-fits-all. The way your body reacts after you twist your ankle is not the same as how it behaves during an arthritis flare. RLT adapts well to both situations because it supports the underlying healing mechanisms rather than just one type of inflammation.
For Acute Inflammation (e.g., Sports Injuries, Post-Surgery)
Acute inflammation hits fast and hard. You feel it after rolling an ankle or hitting a new personal best at the gym. RLT can help settle swelling and speed up tissue recovery. Many physiotherapists now pair manual therapy with red light therapy for pain because it shortens downtime and reduces soreness.
For Chronic Inflammation (e.g., Arthritis, Autoimmune Conditions)
Chronic inflammation behaves more like an unwanted roommate who never leaves. RLT won’t cure conditions like arthritis, but it can help quiet the ongoing inflammatory signals that make everyday movements feel harder. Many people report better mobility and fewer flare-ups with consistent use. It’s not a cure, but it often makes life easier.
Red Light vs. Near-Infrared: Which is Better for Inflammation?
Different wavelengths behave differently in the body. Choosing red light or near-infrared depends on where the inflammation actually is.
Red Light for Skin and Surface Inflammation
Red wavelengths (630–660 nm) stay closer to the surface. They’re perfect for skin-related inflammation, whether it’s eczema flare-ups, irritated acne, or healing wounds. These wavelengths help calm redness and support skin repair.
Near-Infrared (NIR) Light for Deep Inflammation (Joints, Muscles)
Near-infrared light (810–850 nm) penetrates deeper into muscles, ligaments, tendons, and joints. This makes it ideal for knee pain, shoulder injuries, back tension, and anything happening beneath the skin. People searching for the best red light therapy for inflammation usually end up choosing NIR devices because deep-tissue inflammation responds especially well.
Practical Applications: Using RLT to Fight Inflammation
One of the biggest strengths of RLT is how adaptable it is. Whether you need to treat a tiny spot or support your whole system, the approach is simple and scalable.
Localized Treatment for a Sprained Ankle
If you’ve ever sprained an ankle that ballooned to twice its size, you’ll know how stubborn swelling can be. Holding a handheld device over the area for targeted RLT sessions can help the swelling go down faster and make walking less painful. This is where red light therapy’s anti-inflammatory and pain-reduction effects really shine.
Full-Body Treatment for Systemic Inflammation
People with autoimmune conditions or chronic pain sometimes deal with inflammation everywhere. Full-body panels or beds allow widespread treatment, supporting recovery after workouts or long days at work. Regular full-body RLT sessions can help keep systemic inflammation at a manageable level.
What the Evidence Says
The research behind photobiomodulation continues to expand, and inflammation remains one of its most studied effects. The findings, so far, point in a very encouraging direction.
A Summary of Key Research on PBM's Anti-Inflammatory Effects
Across multiple studies, RLT has been shown to lower inflammatory cytokines, reduce oxidative stress, speed up muscle recovery, relieve arthritis symptoms, and promote healthier tissue repair. The scientific consensus is clear: RLT has real potential as an anti-inflammatory tool.

Frequently Asked Questions
How quickly can red light therapy reduce inflammation?
Some people feel improvement within a few sessions, especially with acute injuries. Chronic inflammation usually takes a few weeks of regular use to show clear results.
Is RLT better than taking an anti-inflammatory pill like ibuprofen?
They work differently. Ibuprofen blocks inflammation temporarily. RLT improves the cellular environment so your body can regulate inflammation more effectively. Many people use both, but RLT is better for long-term support.
Can it help with internal inflammation?
Potentially. Near-infrared wavelengths can reach deeper tissues, and early research is promising. Still, RLT should never replace medical treatment for serious internal inflammation.