What Is Red Light and Near-Infrared Therapy?
Red light and near-infrared (NIR) therapy is a non-invasive treatment that uses specific wavelengths of light to interact with the body’s tissues.
Specifically, red light (approximately 630–660 nm) affects the skin and surface tissues. In contrast, near-infrared light (approximately 810–1060 nm) reaches deeper structures such as muscles, joints, nerves, and connective tissues.
Researchers continue to study these wavelengths for their potential to support normal cellular function, including energy production, circulation, and tissue repair.
How It Works
When cells absorb light energy, it may support mitochondrial function—the part of the cell responsible for producing energy (ATP).
As a result, this process may influence several natural functions in the body, including:
- Circulation and blood flow
- Inflammatory response
- Muscle and soft tissue recovery
- Cellular repair and regeneration
However, research is still ongoing, and results can vary based on the individual and the condition being addressed.
Common Reasons Patients Use This Therapy
Patients often include red and NIR light therapy as part of a broader care plan. In many cases, they use it to support musculoskeletal, neurological, skin, and general wellness concerns.
Musculoskeletal and Pain-Related Conditions
For example, patients may use this therapy for:
- Back pain
- Neck pain
- Shoulder pain
- Knee and hip pain
- Muscle strains and sprains
- Joint stiffness
- Arthritis-related discomfort (osteoarthritis and rheumatoid patterns)
- Tendonitis
- Ligament irritation
- Bursitis
- Plantar fasciitis
- TMJ-related jaw tension or dysfunction
- Repetitive strain injuries
Neurological and Nerve-Related Conditions
In addition, some patients seek support for:
- Peripheral neuropathy (including diabetic neuropathy)
- Nerve irritation or hypersensitivity
- Sciatica-type symptoms
- Migraine and tension headaches
- Post-injury nerve recovery support
Recovery and Performance Support
Similarly, individuals focused on recovery may use it for:
- Post-exercise muscle soreness
- Athletic recovery
- Overuse injuries
- Delayed soft tissue healing
- General fatigue and recovery support
Skin and Soft Tissue Support
At the same time, red light therapy may support:
- Acne and acne scarring
- Rosacea
- Eczema and dermatitis
- Psoriasis
- Surgical scars
- Stretch marks
- Wound healing support
- Burns and minor skin injuries
- Sunburn recovery
- Skin texture and tone changes
- Hair thinning or hair loss patterns (supportive use)
Circulatory and Metabolic Support
Additionally, some patients use this therapy to support:
- Circulation
- Swelling and edema
- Lymphatic flow
- Cold extremities
- General metabolic recovery
Inflammatory and Autoimmune-Related Support
In certain cases, patients include this therapy to help manage:
- Chronic inflammation
- General inflammatory pain patterns
- Autoimmune-related joint discomfort (supportive care only)
- Thyroid-related dysfunction support (adjunctive wellness use)
Mental, Cognitive, and Sleep-Related Support
Beyond physical conditions, this therapy may also support:
- Sleep disturbances or insomnia
- Stress-related tension
- Mood changes related to seasonal variation
- Brain fog or cognitive fatigue
- Post-concussion recovery support (adjunctive care)
General Wellness Applications
More broadly, patients may use this therapy to support:
- Cellular energy production
- Immune system balance
- Hormonal balance (general wellness context)
- Collagen production
- Healthy aging and tissue maintenance
- Overall recovery and resilience
What to Expect During a Session
A typical session remains simple, comfortable, and non-invasive.
During treatment, you lie down in a private room while a provider positions the light device over the targeted area. Sessions typically last about 20 minutes.
Most patients describe the experience as warm or neutral. Importantly, the treatment does not cause pain, and you can return to normal activities immediately afterward.
Safety and Comfort
Red light and near-infrared therapy is generally well tolerated. Because it does not use UV light, it does not carry the same risks associated with sun exposure.
In many cases, providers include it alongside other conservative or supportive therapies as part of a broader wellness plan.
Combination Therapies
In some situations, providers combine red light and NIR therapy with other supportive treatments. This approach allows patients to receive multiple therapies efficiently within a single session.
Important Note
Red light and near-infrared therapy does not diagnose or cure disease. Instead, providers use it as a supportive therapy within an individualized care plan.
