Knowledge Base & Sources Page: Red Light Therapy (Photobiomodulation)
Welcome to our knowledge base on red light therapy (also known as photobiomodulation, PBM). Transparency is important to us. That is why we support our health claims exclusively with genuine, published, peer-reviewed research, preferably from reliable medical databases such as PubMed and NCBI.
Red light therapy is not a magic concept. Study results depend heavily on factors such as wavelength (red versus near-infrared), dosage, treatment duration, and the outcome measured.
On this page, you will find an overview of scientific studies by topic, so you can read for yourself what has—and sometimes has not—been demonstrated in the literature.
Red light therapy for muscle and joint pain
Scientific research shows that red light therapy reduces pain, inhibits inflammatory processes, and accelerates the recovery of muscles and joints by stimulating mitochondrial activity and improving blood circulation.
"Red Light Therapy accelerates muscle recovery and reduces muscle soreness after exercise"
"Red Light Therapy reduces pain and improves grip strength in tennis elbow"
"Red Light Therapy effective for acute and chronic neck pain according to a large international study"
"Red Light Therapy reduces knee pain from osteoarthritis: evidence from 13 clinical studies"
"Red Light Therapy reduces chronic pain and improves quality of life in people with fibromyalgia"
"Red Light Therapy improves functional complaints and daily functioning in fibromyalgia"
"Red Light Therapy reduces chronic muscle and joint pain by an average of 32%"
"Red Light Therapy reduces myofascial pain and trigger points in the trapezius muscle"
"Red Light Therapy reduces chronic shoulder and neck pain in a placebo-controlled study"
These products are good for muscle and joint pain.
PrimeFORCE Elite Gen5 (Red Light Therapy)
PrimeFORCE RL240 (Red Light Therapy)
PrimeFORCE Advanced Gen5 (Red Light Therapy) – Ideal for home use – Dual chip – 64x23x6,5cm
PrimeFORCE Multi Gen5 (Red Light Therapy)
Red light therapy for skin improvement and skin concerns
Clinical studies show that red light therapy stimulates collagen production, reduces inflammation in the skin, and contributes to healing skin conditions such as acne, eczema, and psoriasis.
Red Light Therapy stimulates collagen production and reduces wrinkles
Red Light Therapy reduces wrinkles around the eyes and improves skin elasticity
Red Light Therapy effective for skin rejuvenation and anti-aging
Red Light Therapy reduces inflammation and accelerates skin wound healing
Red Light Therapy supports the treatment of psoriasis and inflammatory skin conditions
Red Light Therapy reduces symptoms of eczema and skin inflammation
Red Light Therapy improves skin texture and collagen density
LED light therapy just as effective as laser treatment for psoriasis
Red light therapy improves skin condition and reduces signs of aging
These products are good for skin problems.
GLOW® LED mask – Near-Infrared & Red-Light Therapy
PrimeFORCE RL60 (Red Light Therapy)
PrimeFORCE Advanced Gen5 (Red Light Therapy) – Ideal for home use – Dual chip – 64x23x6,5cm
PrimeFORCE RL240 (Red Light Therapy)
Red Light Therapy for better sleep quality and recovery
Scientific research shows that red light therapy improves sleep quality, reduces the time it takes to fall asleep, and supports the circadian rhythm by influencing brain activity, melatonin, and mitochondrial energy production.
Red Light Therapy Improves Sleep in People with Insomnia: Results from a Systematic Review and Meta-Analysis
Red Light Therapy increases brain activity and blood flow, thereby improving sleep quality and alertness
Portable red light therapy device improves sleep and daily functioning in a randomized controlled study
Near-infrared light improves mood, reduces fatigue, and supports the biological rhythm: double-blind, placebo-controlled study
Photobiomodulation supports sleep regulation by cleansing the brain and boosting mitochondrial energy production
Photobiomodulation regulates circadian rhythms and supports sleep in people with metabolic disorders.
Red Light Therapy improves sleep quality and increases melatonin levels in athletes: randomized study
Light therapy effective for insomnia, circadian rhythm disorders, and sleep problems in dementia: meta-analysis of 53 studies
Red Light Therapy reduces insomnia, anxiety, depression, and stress in shift-working nurses: a randomized controlled trial
These products are good for skin problems.
LIROMA® Infrared lamp Double head – 507 – Ideal for home use
LIROMA® Infrared lamp Single head – 506 – Ideal for home use
PrimeFORCE Advanced Gen5 (Red Light Therapy) – Ideal for home use – Dual chip – 64x23x6,5cm
PrimeFORCE RL240 (Red Light Therapy)
Red Light Therapy for athletic performance and faster recovery
Scientific research shows that red light therapy accelerates muscle recovery, reduces muscle soreness, and improves performance by stimulating mitochondrial energy production and blood flow while reducing inflammation.
Red Light Therapy for Exercise Improves Muscle Strength and Reduces Fatigue: Meta-Analysis of Randomized Controlled Studies
Red Light Therapy improves muscle recovery and reduces muscle damage after plyometric training: randomized controlled trial
Photobiomodulation reduces muscle soreness after exercise and accelerates recovery processes: systematic review and meta-analysis
Red Light Therapy improves muscle performance in volleyball and soccer players: meta-analysis of randomized controlled studies
Red Light Therapy for Exercise Reduces Muscle Fatigue and Improves Muscle Performance: Systematic Review with Meta-Analysis
Red Light Therapy reduces inflammatory markers and accelerates muscle recovery after intense exercise in elite athletes
Photobiomodulation stimulates mitochondrial activity, increases ATP production, and thereby improves muscle performance and energy delivery.
Red Light Therapy for athletes: overview of ergogenic and recovery effects from 12 systematic reviews and meta-analyses
Red Light Therapy improves muscle strength and reduces markers of muscle damage in athletes: systematic review and meta-analysis
These products are good for muscle recovery and sports performance.
LIROMA® Infrared lamp Double head – 507 – Ideal for home use
PrimeFORCE Advanced Gen5 (Red Light Therapy) – Ideal for home use – Dual chip – 64x23x6,5cm
PrimeFORCE Elite Gen5 (Red Light Therapy)
PrimeFORCE Multi Gen5 (Red Light Therapy)
Red Light Therapy for Inflammation and Chronic Inflammatory Symptoms
Scientific research shows that red light therapy inhibits inflammatory processes, reduces oxidative stress, and accelerates tissue repair by stimulating mitochondrial activity and improving blood circulation.
Red Light Therapy reduces inflammatory responses at the cellular level through mitochondrial activation and immune modulation.
Photobiomodulation inhibits chronic inflammation and promotes tissue repair: mechanisms and clinical applications
Red Light Therapy reduces knee pain from osteoarthritis: evidence from 13 clinical studies
Red Light Therapy accelerates wound healing by stimulating cellular proliferation, collagen formation, and reducing inflammation.
LED light therapy effective for psoriasis and other inflammatory skin conditions: systematic review and meta-analysis
Red Light Therapy reduces inflammatory markers and muscle damage in elite athletes after intense exercise: randomized controlled study
Photobiomodulation modulates immune responses and inflammatory processes: comprehensive review of cellular and clinical mechanisms
Red Light Therapy reduces chronic pain and improves functional symptoms in fibromyalgia: systematic review
Red Light Therapy leads to significant pain reduction and improved quality of life in fibromyalgia: randomized study
These products are good for chronic pain.
PrimeFORCE Advanced Gen5 (Red Light Therapy) – Ideal for home use – Dual chip – 64x23x6,5cm
PrimeFORCE RL240 (Red Light Therapy)
PrimeFORCE Elite Gen5 (Red Light Therapy)
PrimeFORCE Multi Gen5 (Red Light Therapy)
Red Light Therapy for Hair Loss and Hair Growth Stimulation
Scientific research shows that red light therapy stimulates hair growth, reduces hair loss, and activates hair follicles through improved blood circulation, stimulation of cellular activity, and extension of the hair’s growth phase.
Red Light Therapy increases hair density in men and women with androgenetic alopecia: randomized double-blind study
Photobiomodulation increases hair density in women with hair loss: a review of clinical studies
Red Light Therapy safe and effective for hair growth in men and women: systematic review and meta-analysis of 7 randomized controlled studies
Photobiomodulation significantly promotes hair growth by stimulating hair follicles and extending the growth phase: meta-analysis
Red Light Therapy stimulates hair follicles by inducing telogen follicles to re-enter the anagen phase and prolonging the anagen phase.
Red Light Therapy reduces hair loss and improves hair density and hair diameter in androgenetic alopecia
Red Light Therapy safe and effective for hair loss: all randomized controlled studies report positive effects without side effects
Photobiomodulation increases blood flow to the scalp via nitric oxide, thereby improving nourishment of the hair follicles.
Photobiomodulation extends the anagen phase of hair growth and reduces hair shedding by stimulating mitochondrial activity in hair follicle stem cells.
These products are good for chronic pain.
PrimeFORCE RL60 (Red Light Therapy)
PrimeFORCE Advanced Gen5 (Red Light Therapy) – Ideal for home use – Dual chip – 64x23x6,5cm
PrimeFORCE RL240 (Red Light Therapy)
PrimeFORCE Elite Gen5 (Red Light Therapy)
Red Light Therapy for Acne and Blemished Skin
Scientific research shows that red light therapy reduces skin inflammation, inhibits bacteria, and accelerates skin healing, leading to less acne and a more even complexion.
Combined blue-red LED light therapy reduces acne lesions by 77% and lowers inflammatory markers: double-blind randomized study
Red Light Therapy safe and effective for acneLED light therapy safe and effective for acne vulgaris: systematic review and meta-analysis of 31 randomized controlled studies
Red light (620-750 nm) penetrates deeply into the skin, reaches sebaceous glands directly, and exerts anti-inflammatory effects through cytokine modulation: review study
Blue and red light exert bactericidal effects on Cutibacterium acnes via porphyrins, thereby reducing bacterial activity and inflammation in acne.
These products are good for chronic pain.
PrimeFORCE RL60 (Red Light Therapy)
GLOW® LED mask – Near-Infrared & Red-Light Therapy
PrimeFORCE Advanced Gen5 (Red Light Therapy) – Ideal for home use – Dual chip – 64x23x6,5cm
PrimeFORCE RL240 (Red Light Therapy)
Red Light Therapy for relaxation and more energy
Scientific research shows that red light therapy increases energy production in cells, reduces stress, and supports the recovery of body and mind by stimulating mitochondria and improving blood circulation.
Photobiomodulation increases ATP production through mitochondrial activation: mechanisms and clinical evidence
Red Light Therapy reduces fatigue and improves muscle function in intensive care patients: randomized triple-blind study
Photobiomodulation significantly reduces fatigue in fibromyalgia and provides evidence for broader use in cases of fatigue.
Transcranial photobiomodulation improves cognitive function and brain energy metabolism: systematic review
Photobiomodulation lowers cortisol levels, reduces anxiety-related behavior, and promotes relaxation through serotonin stimulation.
Photobiomodulation significantly improves quality of life across multiple domains: prospective study with 12-month follow-up
These products are good for relaxation and stress.
LIROMA® Infrared lamp Double head – 507 – Ideal for home use
LIROMA® Infrared lamp Single head – 506 – Ideal for home use
PrimeFORCE Advanced Gen5 (Red Light Therapy) – Ideal for home use – Dual chip – 64x23x6,5cm
PrimeFORCE RL240 (Red Light Therapy)
Red Light Therapy for Low Back Pain and Chronic Back Problems
Scientific research shows that red light therapy reduces lower back pain, inhibits inflammation, and improves mobility by stimulating cellular repair, circulation, and muscle relaxation.
Photobiomodulation reduces chronic inflammation and pain by modulating prostaglandins and inflammatory markers: a review of randomized studies
Red Light Therapy provides lasting pain relief and improves quality of life in patients with chronic lower back pain: a randomized study
Red Light Therapy reduces pain in chronic nonspecific low back pain: a meta-analysis of 15 randomized controlled trials
Red Light Therapy effective for chronic nonspecific low back pain: systematic review of 7 randomized controlled trials
Photobiomodulation significantly reduces pain and improves mobility in back disorders: a meta-analysis of randomized controlled trials
Pulsed red light therapy leads to 91.2% pain reduction in chronic muscle-related low back pain: randomized double-blind study
Red Light Therapy combined with exercise therapy improves function and reduces long-term back stiffness: a randomized study
These products are good for back pain and chronic back problems.
PrimeFORCE Advanced Gen5 (Red Light Therapy) – Ideal for home use – Dual chip – 64x23x6,5cm
PrimeFORCE Elite Gen5 (Red Light Therapy)
PrimeFORCE Multi Gen5 (Red Light Therapy)
SHIELD Back band (Red light therapy) – Ideal for home use
Red Light Therapy for improved blood flow and circulation
Scientific research shows that red light therapy stimulates blood flow, improves oxygen transport, and supports microcirculation, contributing to faster recovery and improved cellular activity.
Photobiomodulation increases microcirculation by 54% and induces prolonged vasodilation: randomized controlled study
Red Light Therapy promotes vasodilation and angiogenesis via nitric oxide, thereby improving microcirculation and oxygen delivery to tissues.
Photobiomodulation improves endothelial function and circulation through increased nitric oxide availability: comprehensive review
Red light (670 nm) induces significant vasodilation via nitric oxide and increases blood flow in tissues: in vivo study
Photobiomodulation increases blood flow to muscle tissue through NO release, accelerating post-exercise recovery and improving performance.
Photobiomodulation improves cardiovascular circulation, reduces oxidative stress, and supports tissue repair: an overview of molecular mechanisms
Photobiomodulation promotes vasodilation, angiogenesis, and improved blood flow as a core mechanism underlying multiple therapeutic effects.
These products are good for relaxation and stress.
LIROMA® Infrared lamp Double head – 507 – Ideal for home use
LIROMA® TDP lamp 607A
PrimeFORCE Advanced Gen5 (Red Light Therapy) – Ideal for home use – Dual chip – 64x23x6,5cm
PrimeFORCE RL240 (Red Light Therapy)
Frequently asked questions
Market leadership: Liroma is the market leader in the Netherlands and Belgium, which indicates reliability and quality. As customers increasingly choose Liroma, this reflects a solid reputation and customer satisfaction.
Wide range: Liroma offers a wide range of products, from panels to LED masks and back straps. This ensures that you can choose the product that best suits your specific needs.
Innovation and technology: Liroma continues to improve and innovate its technology to increase the effectiveness of red light therapy. This allows you to benefit from the latest innovations in the field.
Ease of use and accessibility: Liroma's products are designed to be easy to use, whether you are treating yourself at home or in a professional setting.
Positive customer reviews: The growing number of positive reviews on platforms such as Trustpilot demonstrates customer satisfaction, which is an important sign of a reliable choice.
Customer service: At Liroma, customer service is our top priority. We answer all your questions within 24 hours and are available daily by email or phone to assist you.
Focus on quality: As the market leader, Liroma is often able to maintain the highest quality standards, which is crucial for the effectiveness of red light therapy.
The recommended duration of a session is usually between 10 and 15 minutes at a distance of 50 cm. At a greater distance, you can sit in front of the lamp a little longer, approximately 15–20 minutes at 100 cm.
In general, it is recommended to maintain a distance of 30–50 cm from the lamp. However, some products, such as LED face masks, can be used closer to the skin. For products that require a different distance, this is clearly stated on the product page. Learn more?
Although there are no strict rules, regular use is recommended. Start with 2 to 3 sessions per week to let your body get used to it. Listen carefully to your body.
You can gradually adjust the number of sessions based on your comfort level. For the best results, at least 4–6 times per week is recommended.
Red light and near-infrared light (NIR) penetrate deep into the skin and are absorbed by the cells.
Light in the red and NIR spectrum can penetrate the skin to a depth of approximately 5 to 10 millimeters, allowing it to reach deeper tissues.
Once inside the cell, the light is absorbed by the mitochondria, the powerhouses of the cell.
Mitochondria contain a light-absorbing enzyme called cytochrome c oxidase, which plays a crucial role in the production of adenosine triphosphate (ATP), the primary energy source for cellular processes.
The absorption of light by cytochrome c oxidase stimulates the mitochondria to produce more ATP.
ATP is essential for numerous cellular functions, such as repair, regeneration, and normal cell function. With more energy available, cells can function more efficiently and recover from damage more quickly.
Red Light Therapy increases ATP production and improves cellular functions, leading to accelerated tissue repair and regeneration. This results in faster wound healing, fewer scars, and improved skin health.
The anti-inflammatory effects of photobiomodulation relieve pain, reduce swelling, and improve joint and muscle function. In addition, the therapy supports the immune system, promotes muscle recovery, helps with chronic pain, and improves overall energy and vitality.
There are no known negative side effects, making it a safe option for a wide range of users. In addition, our devices are easy to use and come with clear instructions for correct and safe application. Learn more?
Maintaining a red light therapy panel is essential to ensure that it continues to function optimally and has a long lifespan. Here are some tips for proper maintenance:
- Clean it regularly with a soft, dry, or slightly damp cloth (do not use harsh cleaning products).
- Avoid damp areas, such as the bathroom.
- Regularly check the cables and plugs for wear.
- Allow the panel to cool down after use.
- Follow the manufacturer's maintenance guidelines.
Red light and near-infrared light (NIR) are both forms of light that fall within the electromagnetic spectrum, but they differ in wavelength and how they are absorbed by the body.
1. Wavelength
Red light has a wavelength between 600 and 700 nanometers (nm), and it is visible to the human eye. It has a warmer, more visible appearance.
Near-infrared light has a longer wavelength of 700 nm to approximately 1,200 nm. This lies just outside the visible spectrum, making it invisible to the human eye, but it still has a great deal of energy and can penetrate deeper layers of the body.
2. Penetration into the body
Red light penetrates the skin to a depth of approximately 5 millimeters. It is primarily used to stimulate the superficial layers of the skin, such as improving skin texture, promoting collagen production, and reducing inflammation.
Near-infrared light can penetrate more deeply, up to 2-3 centimeters into the body. It is often used for muscle recovery, joint pain, and improving blood circulation in deeper tissues.
3. Applications
Red light is often used for skin care and promoting healthy skin, for example by stimulating collagen production and reducing inflammation.
Near-infrared light is often used for deeper tissue recovery, such as muscle and joint pain, promoting blood circulation, and accelerating recovery after physical exertion or injuries.
4. Effects on the body
Both types of light have therapeutic effects, such as promoting cell recovery and reducing inflammation. Near-infrared light, however, has a greater effect on deeper tissues and is often used for pain relief, while red light is more focused on skin improvement and superficial regeneration.
In general, they are often used together in combination therapies to benefit from both superficial skin improvement and deep tissue therapy.
Users of our panels notice improvements in pain relief, inflammation, and mobility within just a few days.
Our surveys show that 94% of customers experience pain relief within the first 4 weeks of regular use. Consistency is important for the best results.
We recommend treating one body part per day with radiation. It is therefore possible to treat multiple body parts in one day.