Red light therapy is an evidence-informed treatment that uses specific wavelengths of light to promote healing, reduce inflammation, and support overall well-being. It is widely known for improving skin health and providing pain relief, but it can also play a meaningful role in neurological health.

What are the benefits of red light therapy in terms of neurological care? Our team at Universal Neurological Care in Jacksonville, FL breaks it down here.

Key Takeaways

• When targeted at the brain, red light therapy supports healing at the neurological level by stimulating mitochondrial energy production.
• Clinical studies show it can enhance cognition, reduce nerve pain, and support brain injury recovery.
• It is a safe and non-invasive treatment, making it highly accessible to patients of all ages.
• Beyond neurological benefits, red light therapy can improve circulation, reduce inflammation, and support skin health.
• Near-infrared wavelengths are specifically used for neurological applications — sometimes called photobiomodulation (PBM).

What Is Red Light Therapy and How Does It Work?

Red light therapy (RLT) uses specific wavelengths of visible red light (typically 620–700 nm) and near-infrared light (700–1100 nm) to penetrate the skin and reach underlying tissues.

According to the National Library of Medicine, red light therapy works at a cellular level by stimulating mitochondria — the powerhouses of cells responsible for energy production — to produce more ATP (adenosine triphosphate). This speeds up essentially all cellular processes and improves blood flow to the area.

The result is a cascade of biological effects:

• Increased cellular energy production
• Reduced oxidative stress
• Decreased inflammation
• Improved circulation and oxygenation of tissue
• Stimulation of tissue repair mechanisms

Red Light vs. Near-Infrared: What's the Difference?

	Red Light (620–700 nm)	Near-Infrared (700–1100 nm)
Penetration depth	Superficial (skin, surface tissue)	Deep (muscle, bone, brain tissue)
Primary use	Skin health, wound healing	Neurological, joint, and deep tissue
Brain application	Limited	Yes — crosses scalp and skull
Clinical term	Red light therapy	Photobiomodulation (PBM) / NILT

For neurological applications specifically, near-infrared light is the relevant wavelength. This is why the treatment is often referred to as near-infrared light therapy (NILT) or photobiomodulation (PBM) in clinical settings.

Neurological Benefits of Red Light Therapy

The brain consumes roughly 20% of the body's oxygen despite representing only about 2% of body mass. This makes it especially vulnerable to oxidative stress, inflammation, and cellular energy deficits — all of which are associated with neurological conditions.

Hamblin (2016) in BBA Clinical outlined the key mechanisms: near-infrared wavelengths penetrate the skull and are absorbed by neurons, reducing neuroinflammation, supporting mitochondrial function, and improving cerebral blood flow.

When used as light therapy for brain health, near-infrared wavelengths stimulate mitochondrial function in brain cells. Photobiomodulation has shown potential for:

• Repairing damaged nerves — supporting recovery in conditions like peripheral neuropathy
• Reducing neuroinflammation — calming inflammatory pathways associated with brain injury and neurodegenerative conditions
• Modulating nerve activity — potentially alleviating chronic nerve pain
• Improving memory, focus, and cognitive performance — by supporting neuronal energy production
• Supporting recovery after brain injury — including stroke and traumatic brain injury (TBI)

A study by Naeser et al. (2014) documented meaningful improvements in memory, attention, and post-traumatic stress symptoms in veterans with chronic traumatic brain injury following transcranial near-infrared therapy.

A 2017 case series published in Photomedicine and Laser Surgery (Saltmarche, Naeser, Ho, Hamblin & Lim) found significant cognitive improvements in patients with mild to moderately severe dementia treated with transcranial plus intranasal photobiomodulation over 12 weeks. A separate 2019 pilot study by Chao, published in Photobiomodulation, Photomedicine, and Laser Surgery, explored home-based near-infrared therapy for patients with dementia, examining effects on cognitive function, cerebral perfusion, and brain connectivity.

While larger randomized controlled trials are still needed, the existing evidence positions red light therapy as a meaningful complementary approach in neurological wellness plans.

Conditions Where Red Light Therapy Is Being Explored

At Universal Neurological Care, red light therapy is considered as part of a broader neurological wellness strategy for patients experiencing:

• Peripheral neuropathy — nerve damage causing pain, tingling, or numbness
• Traumatic brain injury (TBI) — supporting cellular repair and reducing inflammation
• Chronic nerve pain — modulating pain signals in affected nerves
• Cognitive concerns — brain fog, memory challenges, and difficulty focusing
• Post-stroke recovery — supporting neurological repair processes
• Neurodegenerative conditions — Alzheimer's and Parkinson's (early-stage research)

Red light therapy is not a replacement for conventional neurological treatment. It is explored as a supportive, non-invasive complement to evidence-based care such as TMS therapy and our Universal Wellness programs.

Health Benefits of Red Light Therapy Beyond the Brain

Beyond its neurological impact, red light therapy across a wider range of light spectrums offers systemic benefits:

• Reduced inflammation — Light penetrates deeply to target inflammation, helping relieve pain from many chronic conditions.
• Improved circulation — By stimulating nitric oxide production, red light therapy helps blood vessels dilate, promoting better oxygen and nutrient delivery to tissues.
• Faster tissue repair — By speeding up energy production, red light therapy accelerates recovery for injured muscles and tendons.
• Improved skin health — One of the most well-documented benefits; red light therapy can reduce scars, wrinkles, and soothe acne and rosacea.

By directing light at specific areas of the body, your practitioner can target precise treatment areas — making it an extremely versatile treatment that adjusts based on your health condition.

Is Red Light Therapy Safe?

Yes — current evidence consistently supports red light therapy as a safe, non-invasive treatment when administered correctly. It produces no ionizing radiation and does not heat tissue to damaging temperatures.

Key safety points:

• Non-invasive and painless
• No recovery time required
• No known serious side effects at therapeutic doses
• Safe for most patients, including those who cannot tolerate medications or more invasive procedures

As with any treatment, a consultation with a qualified neurologist or healthcare provider is recommended to determine whether it is appropriate for your specific condition.

Red Light Therapy in Jacksonville, FL

Patients in Jacksonville, FL experiencing neurological challenges — from cognitive concerns to nerve pain and TBI recovery — can explore red light therapy as part of a personalized wellness plan at Universal Neurological Care.

Our team at 8823 San Jose Blvd., Suite 209, Jacksonville, FL 32217 customizes each session to your specific neurological needs, integrating red light therapy alongside evidence-based treatments like TMS therapy and comprehensive neurological care.

Contact us to schedule a consultation.

FAQ: Benefits of Red Light Therapy

How does red light therapy work? 

Red light therapy uses specific wavelengths to penetrate the skin and target mitochondria in cells. This stimulates energy production, reduces inflammation, and supports cellular repair — including in neurological tissue.

How is red light therapy administered?

It is typically delivered using a panel or device positioned near the treatment area. For neurological applications, near-infrared light is directed toward the scalp or the affected region of the body. Sessions are painless and usually last 10–20 minutes.

How often should you do red light therapy? 

Frequency depends on the condition being treated and your individual goals. Most protocols involve sessions 2–5 times per week, especially in the early stages of treatment. Your care team at Universal Neurological Care will develop a personalized schedule.

Is red light therapy safe for neurological conditions? 

Yes — studies support red light therapy as safe for neurological conditions. It is non-invasive, produces no ionizing radiation, and has a well-established safety profile. A professional consultation is recommended to confirm it is appropriate for your situation.

What's the difference between red light therapy and near-infrared therapy? 

Red light (620–700 nm) primarily affects surface tissue. Near-infrared light (700–1100 nm) penetrates deeper, reaching muscles, joints, and brain tissue. For neurological health, near-infrared wavelengths are specifically used.

How long before I see results from red light therapy?

Some patients report improvements in pain and energy within a few sessions. Cognitive and neurological benefits typically build over 4–8 weeks of consistent treatment. Results vary based on the condition, severity, and individual response.

What is red light therapy good for? 

Red light therapy is good for a wide range of conditions — including neurological support, chronic pain, peripheral neuropathy, cognitive concerns, brain injury recovery, skin rejuvenation, and muscle recovery. At Universal Neurological Care, it is primarily used for brain health and neurological wellness.