Does Red Light Therapy Increase Blood Flow?

Ever wondered how red light could boost your health? I have! Judging by available numerous studies into red light therapy, it’s making waves in the wellness world for a reason. Turns out, red light therapy is a game changer for a wide range of people: athletes recovering from a tough workout, someone dealing with chronic pain, or someone just looking to give their skin a little extra glow. It’s non-invasive, easy to use, and packed with benefits, from reducing inflammation and promoting wound healing to improving circulation.

At its core, red light therapy, also known as low-level laser (LLL) therapy, uses specific wavelengths of light to penetrate the skin and body tissue, supercharging cellular energy production. This not only supports your body’s natural healing processes but also boosts circulation, reduces pain, and supports skin health. In this post, you will learn about the connection between red light therapy and increased blood flow. Let’s dive in and explore what stands behind it.

Does Red Light Therapy Increase Blood Flow?

Before we explore the evidence, it’s helpful to know how red light therapy works, because that mechanism ties directly into blood circulation and improving blood flow. In the following sections, I’ll unpack the physiology behind it, explore other incredible benefits of red light therapy beyond circulation, and offer informed, actionable guidance to make your next light therapy session as effective as possible.

How Does Red Light Therapy Work?

To begin with, understanding how red light therapy works requires looking at the core mechanism behind it. When your cells absorb red and near-infrared light, that triggers a series of cellular processes that improve your overall health. The low-level laser therapy (LLLT) works by stimulating the mitochondria in your cells to produce more energy, setting the stage for improved circulation, faster healing, and reduced inflammation (source). Let’s break down the science behind this energy boost and how it supports your body.

Cellular Energy Boost

For starters, red and near-infrared light penetrate the skin and are absorbed by mitochondria, the powerhouses of our cells. To clarify, mitochondria are responsible for generating ATP (adenosine triphosphate), the primary energy source that powers nearly all cellular functions. The application of red light therapy enhances mitochondrial activity, boosting ATP production. This increased cellular energy not only supports improved metabolism but also accelerates various bodily processes, such as tissue repair and the regulation of blood vessels.

The extra energy helps cells function more efficiently, leading to better oxygen utilization, improved circulation, and an overall enhanced ability to fight off inflammation and stress. Scientific studies have shown that this mitochondrial stimulation can lead to various improvements, including faster recovery times after physical exertion or injury, enhanced treatment outcomes in ocular diseases and skin repigmentation (source, source, source, and source).

Nitric Oxide Release

Another fascinating effect of red light therapy is its ability to stimulate the release of nitric oxide (NO). Specifically, NO is a molecule that plays a crucial role in vascular health by promoting the dilation (widening) of blood vessels. This process, known as vasodilation, allows for increased blood flow and improved circulation throughout the body (source). In fact, red light therapy can directly influence the release of nitric oxide by interacting with the enzymes that regulate its production in the endothelial cells of the vessels. Studies have shown that this process significantly enhances blood flow, which can be especially beneficial in reducing conditions like hypertension, improving cardiovascular health, and accelerating muscle recovery (source, source, source, and source).

Reduced Inflammation

Next, the combined effects of increased cellular energy and nitric oxide release help reduce inflammation. Inflammation is often a primary factor in poor circulation and a variety of chronic conditions, including joint pain and muscle soreness. Red light therapy helps lower the levels of inflammatory markers in the body, such as cytokines and prostaglandins, by stimulating the mitochondria to work more efficiently. Additionally, the nitric oxide released during therapy helps regulate blood vessel health, reducing congestion caused by inflammation.

Research has shown that this dual-action can lower swelling and discomfort, promoting better blood flow and healthier tissues overall. By reducing inflammation at the cellular level, red light therapy not only helps soothe pain but also helps prevent long-term damage to tissues and organs (source and source).

Enhanced Tissue Repair

Finally, the increase in ATP production and the reduction in inflammation together create the perfect environment for enhanced tissue repair. ATP is essential for the regeneration of cells, and its boost accelerates the body’s natural healing processes. In particular, red light therapy has been shown to promote collagen synthesis, which is vital for wound healing and tissue regeneration. The increased circulation and reduced inflammation ensure that nutrients and oxygen are efficiently delivered to damaged tissues, promoting faster recovery times. This is especially valuable after injury or surgery, where tissue repair is crucial.

Clinical studies have demonstrated that red light therapy can significantly speed up wound healing and reduce scar formation by stimulating cellular processes like angiogenesis (the formation of new blood vessels), improving overall tissue integrity (source, source, source, and source).

Does Red Light Therapy Help With Blood Flow?

The short answer is yes, red light therapy increases blood flow.

Specifically, as it follows from the cited studies above, when red and near-infrared light penetrate tissue, they help release nitric oxide. That widens blood vessels, improving blood circulation—perfect for anyone looking to increase blood flow in muscles, tissues, or organs.

Light therapy sessions—from handheld red light therapy devices to full-body panels—have shown measurable increases in microcirculation. By stimulating nitric oxide and supplying cells with more energy, red light makes blood flow more efficient, delivering nutrients and oxygen precisely where you need them.

Beyond circulation, this boost in blood flow can support pain relief (by flushing out inflammatory markers), chronic pain reduction, and faster wound healing. So, yes—red light therapy works.

What Are The Advantages Of Red Light Therapy?

Let’s break down the key benefits of red light therapy and what you can expect.

Improved Skin Health

First, red light therapy is a powerful ally in enhancing skin health. It not only helps reduce the appearance of fine lines and wrinkles but also promotes the production of collagen and elastin, two proteins that keep skin firm and youthful. With regular use, it can smooth out texture, reduce pigmentation issues, and even help with acne or scarring. The therapy penetrates deep into the dermis, where it stimulates cells to repair and regenerate, giving the skin a healthy, radiant glow. This makes it an excellent choice for anyone looking to maintain or improve their skin’s overall appearance while supporting long-term skin health (source, source, and source).

Reduced Inflammation & Chronic Pain

Second, red light therapy can reduce inflammation, which plays a crucial role in many chronic pain conditions. Whether you’re dealing with muscle soreness, joint discomfort, or general pain, the light helps calm the body’s inflammatory response, providing significant relief. It works by promoting the production of anti-inflammatory molecules and boosting cellular repair mechanisms.

For those who experience chronic conditions such as arthritis or fibromyalgia, red light therapy can be an effective complement to traditional pain management approaches, offering a natural alternative with minimal side effects. Consistent sessions can help reduce the need for pain medications and improve overall quality of life. You can learn more in my blog post Red Light Therapy For Inflammation.

Accelerated Wound Healing

Third, red light therapy accelerates the process of wound healing by boosting cellular energy production. This enhanced energy helps the body repair damaged tissues more efficiently, leading to faster recovery times for cuts, burns, and other injuries. The therapy also promotes better circulation, which improves the flow of oxygen and nutrients to the injured area, aiding in the healing process. Whether recovering from surgery or dealing with a chronic wound, red light therapy can support faster tissue regeneration, reduce scar tissue formation, and help minimize discomfort during recovery (source, source, and source).

Muscle Recovery & Performance

Additionally, athletes have long turned to LED light therapy to improve muscle recovery and performance. The therapy works by increasing blood flow and oxygen delivery to muscles, which helps speed up recovery after intense workouts or physical activity. It aids in reducing soreness and inflammation, which can otherwise hinder performance. By promoting faster tissue repair and reducing oxidative stress, red light therapy helps muscles return to peak condition more quickly, allowing athletes to train harder and more frequently without the risk of overuse injuries. Whether you’re an elite athlete or a weekend warrior, red light therapy is an effective tool for optimizing muscle recovery and enhancing overall performance (source, source, and source).

Boosted Blood Circulation

Furthermore, red light therapy significantly improves blood circulation, especially in areas with poor blood flow. The therapy stimulates the dilation of blood vessels, allowing for better oxygen and nutrient delivery to tissues. This is especially beneficial for individuals who suffer from conditions like Raynaud’s disease, diabetes, or general circulatory issues, where the extremities such as hands and feet often feel cold or numb. By promoting microcirculation and improving blood flow to these areas, red light therapy can reduce feelings of fatigue, increase energy, and help maintain healthy circulation in your body. The overall result is better health, more vitality, and improved functionality in daily activities (source).

Mood And Cognitive Support

Moreover, emerging studies suggest that red light therapy may offer significant benefits for brain health, mood regulation, and cognitive function. By improving blood flow to the brain, it enhances oxygen and nutrient delivery to brain cells, which can support mental clarity, focus, and memory. Additionally, red and near-infrared light has been shown to help with mood disorders, reducing symptoms of anxiety and depression by promoting the production of neurotrophic factors that support brain cell growth and repair. Regular use of red light therapy can lead to improved mental well-being, better sleep, and a reduction in stress levels, making it an excellent option for anyone seeking a natural way to boost their mood and cognitive function (source, source, and source).

Joint Pain Relief

Lastly, red light therapy can be a game-changer for joint pain relief. It works by penetrating deep into the tissues, stimulating cells to produce more energy, which enhances healing and reduces discomfort. By reducing inflammation and promoting better circulation in the joints, red light therapy can alleviate stiffness, improve mobility, and ease chronic pain conditions such as arthritis. Many people report significant relief from joint pain after regular treatments, making it a natural and non-invasive option to complement other pain management strategies. Whether you’re dealing with a past injury or ongoing joint discomfort, incorporating red light therapy into your routine can help reduce pain and improve overall joint health. Learn more in my blog post Red Light Therapy For Joint Pain.

How To Use Red Light Therapy To Increase Blood Flow

Ready to harness these benefits for yourself? Here are practical tips on using red light effectively and safely.

Choose The Right Red Light Therapy Device

To start with, look for devices that deliver both red (~660 nm) and near-infrared (~850 nm) wavelengths with enough power to reach deeper tissue. These wavelengths target blood vessels, skin, and underlying muscle tissue effectively. For safety and efficiency, go with FDA-cleared devices.

Lumebox

I personally use LUMEBOX, which offers both 660 nm red light for skin rejuvenation and 850 nm near-infrared light for muscle recovery. I use the red light five times a week for six minutes, and I’ve seen improvements like reduced puffiness and a brighter complexion. When I have muscle soreness, I switch to the 850 nm setting for fast relief.

Why I trust LUMEBOX Red Light Therapy Device (discount inside):

• I’ve seen real results, which is truly what I was looking for.
• My in-depth conversation with Dr. Vivian Chen, one of the co-founders, makes me feel confident in the brand.
• The device is FDA-registered and independently tested for low EMF levels.
• It qualifies as a medical device, so you can use your HSA or FSA funds.
• Above all, it only takes six minutes per session, making it perfect for a skincare routine for busy women like me.

SaunaSpace

For a full-body experience, check out SaunaSpace FireLight Sauna (10% off). This compact, portable full-spectrum infrared sauna uses special 250 W red light bulbs to gently heat your body—similar to sunlight, but without harmful UV or blue light. This type of light goes deep into your skin to support healing, detox, and relaxation.

It’s made with safe, non-toxic materials like stainless steel, organic cotton, and bamboo, and comes with a comfortable wooden stool. You can set it up in under 45 minutes without tools (although it took me and my son about 3 hours), and it plugs into a regular outlet—no electrician needed. It’s also easy to use with a wheelchair, and it can fit in the corner of your bedroom, office, or living area.

The sauna is FDA-cleared, and for people sensitive to EMFs, there’s an optional SilverLining version that blocks over 99% of EMFs.

Bottom line: This sauna helps you sweat deeply at lower temperatures (around 110–140 °F), so it feels comfortable—not stifling—while still giving you all the detox and health benefits. Sitting upright helps boost blood circulation, lymph flow, and your body’s exposure to the healing light.

Prioritize Power Density & Treatment Duration

Next, aim for around 30–60 mW/cm² irradiance and sessions lasting 10–20 minutes over the targeted area. That ensures real impact on blood circulation without overuse.

Ensure Correct Distance & Coverage

Further, sit 6–12 inches away from a panel device or hold the device directly over the skin—targeting limbs or areas with poor circulation for optimal blood flow benefits.

Stay Consistent

In addition, daily or every-other-day light therapy sessions, especially during healing or recovery phases, help reinforce consistent improvements in blood flow and circulation.

Combine With Routine Healthy Habits

Importantly, use red light as a complement—not a replacement—to hydration, nutritious meals, and movement. The combination amplifies results.

Safety & Awareness Of Side Effects

As a final point, most people tolerate red light well, but watch for mild warmth or redness. These side effects typically fade quickly. If you’re photosensitive, taking certain medications, or pregnant, consult a healthcare provider.

Conclusion: How Does Red Light Therapy Increase Blood Flow?

Scientific Support Shows Red Light Therapy Increases Nitric Oxide And Cellular Energy, Both Of Which Help Open Blood Vessels And Increase Blood Flow.

In conclusion, when you understand how red light therapy works, see the evidence, and install an effective routine, you’re tapping into a powerful tool to improve circulation, promote healing, and support overall well-being. There’s real-world evidence: users report improved microcirculation, reduced inflammation, faster healing, and enhanced pain relief thanks to better blood flow.

Beyond circulation, this therapy can improve skin tone, reduce chronic pain, accelerate wound healing, and even boost athletic recovery. With the right red light therapy device, treatment schedule, and safety awareness, you’re on track for measurable improvements in increasing blood flow.

Check out LUMEBOX Red Light Therapy Device (click to discover a generous discount!). This is the device I use—it offers both 660 nm red light for skin rejuvenation and 850 nm near-infrared light for muscle recovery. It has simplified my routine, and I’m confident, with consistent use, it will help you too.

And for a full-body detox experience, consider SaunaSpace FireLight Sauna (10% off in the link). It promises regeneration, rejuvenation, and relaxation on the cellular level.

Be sure to check out the latest blog posts at I Read Labels For You for valuable insights. Gain instant access to my free emails packed with exclusive content, special discounts, and plenty of motivation to help you stay focused on your health goals. Also, feel free to visit the IRLFY Shop and my Amazon storefront, where you can discover safe and non-toxic products.