What is Red Light Therapy?
Scientific research shows that red and near-infrared light from the sun significantly improves the health of your cells.
Red light therapy uses these essential wavelengths to, among other things, boost skin health, provide pain relief and increase energy levels, while bypassing the risks of UV radiation, to supplement the light deficiency that many suffer from.
Why do we need light?
Light is essential to our well-being, just like food, water and oxygen. It influences our circadian rhythm, mood, sleep and more, and is crucial for biological processes such as metabolism and muscle movement.
Our exposure to natural light has been drastically reduced. Red light therapy offers a solution to compensate for this deficiency, allowing us to function better and improve our general well-being.
NASA's Role
Red and infrared light improve your health by energizing your cells, especially the energy-producing mitochondria. This process, known as red light therapy, increases cell energy, improves body functions and provides several health benefits.
This phenomenon was discovered by NASA in 1993, and thousands of scientific studies have now been conducted that support the benefits of red light therapy.
Scientifically proven
The benefits of Red Light Therapy
Skin & anti-aging
Red light therapy, long popular in high-end spas for its skin benefits, has been scientifically shown to improve skin tone and stimulate rejuvenation. This therapy addresses the root causes of many skin problems by boosting collagen production, reducing inflammation and improving blood circulation. This makes it effective against aging, wrinkles, acne, scars, sun spots, and chronic skin conditions such as eczema, rosacea, and psoriasis.
Sleep optimization
Do you ever wonder why watching a sunset feels so satisfying? This is because the sun mainly emits red and near-infrared light during sunset. These light wavelengths signal your body that it is time to relax and prepare for sleep.
Scientific research has shown that red light has positive effects on sleep and relaxation in the evening, and compensates for the negative effects of blue light exposure during the day. Studies further confirm that red light therapy can improve sleep quality and duration, and stimulate the body to produce more melatonin, known as the 'sleep hormone'.
Energy
Red light therapy has been scientifically shown to stimulate the production of adenosine triphosphate (ATP) in cells. This therapy addresses the root cause of energy deficiency by improving mitochondrial function, leading to increased energy production at the cellular level. This makes it effective in promoting physical performance, and reducing fatigue.
Pain & inflammation relief
Red light therapy has been proven to be an effective, natural method for treating pain and inflammation, without the side effects of medication. It relieves pain and chronic inflammation by promoting blood circulation and strengthening the body's antioxidant defenses.
Although inflammation is a natural and sometimes beneficial process, chronic or uncontrolled inflammation can lead to persistent pain and other health problems.
Red light therapy sessions provide a way to effectively manage inflammation and promote fast and efficient recovery with treatments as short as 10 minutes per day.
Muscle Recovery & Performance
Red light therapy offers the opportunity to train more intensively, faster and with less discomfort by boosting your cellular energy production. This ensures that you can perform optimally.
Because muscle tissue, including the heart, is rich in mitochondria to support movement, it responds particularly well to red and infrared light.
Using red light before training prepares your body for increased strength and endurance. Post-workout use can speed recovery, improve muscle adaptation, and reduce pain and inflammation after intense exercise.
Mental Sharpness
Using red light therapy in the morning sharpens the mind and improves head clarity. Recent studies show that this can strengthen cognitive functions, such as memory and executive skills, making complex tasks easier. Additionally , studies suggest that red and near-infrared light therapy improves cognitive function in healthy adults and could potentially provide a treatment against Alzheimer's.
Stress, anxiety, depression
Mental health issues are a significant challenge in today's society, with many choosing not to take medication - and rightly so. That is why red light therapy is increasingly being chosen as an alternative. Recent research has shown that exposure to red light can enhance cognitive functions, such as memory.
RLT also offers benefits such as reducing fatigue (partly through thyroid support), promoting a balanced state of mind and providing help with depression and anxiety. A recent study found that 74% of participants noticed an improvement in their symptoms of depression or anxiety within 30 days of treatment with red light therapy.
Hormone balance
Red and near-infrared light therapy reveal innovative perspectives for tackling hormonal imbalances . These treatments effectively stimulate the production of essential hormones, including thyroid, mood-regulating hormones and sex hormones, in both men and women.
In the fight against hypothyroidism, this form of therapy can significantly improve thyroid function , which can reduce or even eliminate dependence on medications.
Although data is still limited, research suggests an increase in testosterone levels, which is thought to result from the activation of light-sensitive proteins in the testicles.
Hair loss
Red light therapy has also proven effective in treating hair loss. Research shows that red light can stimulate the activity of hair follicles , resulting in increased hair growth and improved hair density.
This therapy works by promoting cell growth and repair in the hair follicles, leading to an increase in blood circulation and the supply of essential nutrients to the scalp. As a result, it can help reduce thinning hair and promote healthier hair growth.
Weight loss
Mitochondria also play a central role in weight loss, it has been proven that using red light after exercise stimulates metabolism and even reduces cellulite.
RLT is quickly becoming popular in the weight loss world. In a recent clinical study, using red light was twice as effective at burning fat when combined with exercise. 10 minutes of red light therapy after exercise is the best way to achieve this.
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More than 5000+ studies
Thousands of peer-reviewed studies have demonstrated the effectiveness of light therapy, also known as photobiomodulation. These studies confirm that it is a valid and popular method for health improvement and performance enhancement. Vladimir Heiskanen has collected these extensive research results in a database, which provides an accessible overview for anyone who wants to know more about red light therapy.
Featured Clinically Proven Studies
Red light and the increase in sleep quality
This study shows that red light therapy had a positive effect on sleep quality and endurance performance variables in Chinese female basketball players. Based on this research, it was concluded that treatment with red light contributes to increased melatonin secretion in the pineal gland and muscle regeneration.
Effectiveness of Red and Near-Infrared Light for Skin Improvement.
“A controlled study of the efficacy of red and near-infrared light for patient satisfaction, reduction of fine lines, wrinkles, skin roughness and increase in intradermal collagen density: Treated subjects experienced significantly improved skin tone and skin feel, profilometrically assessed skin roughness and ultrasonographically measured collagen density. The blinded clinical evaluation of photographs confirmed a significant improvement in the intervention groups compared to the control groups."
Strengthening Cellular Energy with Red Light Therapy
Exposure to red light of the right spectrum can produce a positive biochemical effect in your cells that strengthens the mitochondria, where the cell's energy is created. Red light therapy can do this by increasing electron transport, oxygen consumption, and your ATP (adenosine triphosphate) levels.
Improving hair growth in people with androgenic alopecia.
Conclusion: The results showed a statistically significant improvement in the laser scanner of the hair growth group compared to the laser hat and the control group. The study showed that treatment with the new laser device had a promising result with no observable side effects.
Phototherapy for Weight Loss in Obese Women.
“Our results showed for the first time that phototherapy enhances the effects of exercise in obese women undergoing weight loss treatment, leading to significant changes in the inflexible metabolic profile.”
Improve neural function and protection to improve cognition and memory for people with Alzheimer's disease.
Photobiomodulation shows promising results in improving neuronal function and survival in the brain, as well as activating excitatory and protective pathways in various conditions. However, the effects appear to vary depending on the patient's condition, whether they are awake or asleep. During wakefulness it appears to improve neural activity, while during sleep it is more focused on improving cerebrospinal fluid flow and waste removal from the brain. These effects can be attributed to the biophoton - ultra-weak light emission - communication and repair network in the brain. Future studies will need to confirm whether these speculations are correct and what therapeutic implications they entail.
Red LED light improves sperm motility in asthenozoospermia.
This study examined the effect of photobiomodulation with LED light on sperm motility in men with asthenozoospermia, a condition in which sperm have low motility. They used different wavelengths of LED light on sperm from thirty men and found that the treatment significantly improved sperm motility and reduced the number of immobile sperm. In untreated samples, only 12% of sperm were rapidly motile, while 73% were immobile. After treatment with LED light, there were significant improvements in sperm motility.
Reduction of psoriasis lesions and burn scars
Effectiveness of red light therapy for the treatment of male infertility.
Previously, it was thought that laser therapy was only complementary in nature and was prescribed in combination with drug therapy or in the final phase of traditional treatment [192], but further studies completely refute this view. Analysis of the scientific literature suggests that laser therapy should be used as much as possible in the complex treatment of men with infertility, because the effectiveness of the method is not only high, but often has no alternatives. For laser illumination, it is best to use only pulsed LILI, red (635 nm) and infrared (904 nm) for local illumination, alternating with continuous LILI with a wavelength of 635 nm (red spectrum) and 365 nm (ultraviolet) for intravenous laser blood illumination.
It is necessary to use the available low-level laser therapy methods as widely as possible: local, rectal, laser acupuncture, ILBI, on the projection of various organs, paravertebral, etc., while adjusting all the parameters of the laser (wavelength, mode of operation, frequency for pulsed lasers, power, density power determined by the method of exposure, exposure, localization), which are established by the appropriate regulatory documents and clinical recommendations.
Liposculpture with low-level laser: clinical report of 700 cases.
"Excellent aesthetic results, including improved silhouette contour, smooth abdominal surface and good skin retraction, were obtained in 95% of cases. Post-operative recovery was rapid and complications were minimal."
Photobiomodulation reduces adipose tissue inflammation in obese mice.
"Non-irradiated control animals show areas of inflammation almost five times larger than those of the treated group (p < 0.001). This result on inflammatory infiltrate may have influenced the significantly lower blood glucose level of irradiated animals (p = 0.04), twenty-four hours after the last radiation session."
Better memory in mild to moderate dementia with photobiomodulation.
“The results suggest that larger, controlled studies are warranted. PBM shows potential for home treatment of patients with dementia and AD.”
Phototherapy with light-emitting diodes against skin aging.
"Skin aging is accompanied by changes such as atrophy, pigmentation, reduced wound healing capacity and wrinkles. There has recently been increasing research and consumer demand for minimally invasive cosmetic treatments using light and energy-based devices, especially for facial skin rejuvenation. Luminous diode (LED) phototherapy is a promising treatment method for photorejuvenation because it is safe, non-invasive, accessible and can be easily combined with other treatment options. LED irradiation alters intrinsic cellular activity through absorption by chromophores in the skin and can lead to desirable effects of photorejuvenation. In this review we discuss the physiological aging process of the skin, how visible light phototherapy with LEDs can be used for aging skin and the importance of photoprotection."
Comparison of red light and blue light therapies for mild to moderate acne vulgaris: A randomized controlled clinical trial.
"At the 2-week follow-up, the mean improvement in total acne lesions was 36.2% in the RL group and 30.7% in the BL group (p>.05). The mean improvement in inflammatory and non-inflammatory -inflammatory lesions was 51.5% and 17.3% in the RL group, compared to 26.4% and 10.0% in the BL group (all p > .05). Treatment-related adverse events were clearly observed in the BL group. Conclusions: Red light and BL therapies have comparable efficacy in mild to moderate acne vulgaris, especially for inflammatory lesions. RL had benefits with fewer side effects compared to BL."
Relieves pain and inflammation in people with Achilles tendon pain.
LLLT at a dose of 5.4 J per point can reduce inflammation and pain in activated Achilles tendonitis. LLLT may therefore have potential in the treatment of diseases with an inflammatory component.
Photobiomodulation with visible red light against skin fibrosis (scars)
"Skin fibrosis, also known as skin scarring, is a global health problem estimated to affect approximately 100 million people annually. Current treatments are associated with significant side effects and even with combination therapy, progression and recurrence are common. This review focuses on the available published study on phototherapy with red light generated by light-emitting diodes (LEDs) for the treatment of skin fibrosis. A search was conducted for published literature from January 1, 2000 to the present regarding the effects of visible red light on skin fibrosis and related pathways. Our systematic search resulted in six articles regarding LED effects on skin fibrosis and dermal fibroblasts. There is growing evidence that visible LED light, especially in the red spectrum, is able to modulate important cell characteristics associated with skin fibrosis. Although there is promise in vitro data, there is a paucity of clinical trials examining the efficacy of LED-RL in the treatment of skin fibrosis, and randomized clinical trials are needed to demonstrate clinical effectiveness on different types of skin fibrosis."
Efficacy of low-level laser therapy for reducing body contours and fat spots.
"LLLT provided safe and significant circumference loss that was sustained over repeated treatments and cumulatively over 4 weeks of eight treatments. The circumference loss from the waist up provided clinically and statistically significant cosmetic improvement."
Reduce the progression of myopia
In summary, this randomized controlled trial provided new evidence for the efficacy of RLRL therapy in reducing myopia progression compared to the sham device at 10% of the original power. The RRL treatment was well tolerated with no apparent side effects. Further studies with long-term follow-up are needed to confirm our findings and to evaluate the potential dose-response relationship and optimal power intensity of RLRL treatment for myopia control.
Effect of 830-nm diode laser irradiation on human sperm motility
This study investigated the effect of low-level laser radiation on the motility of human sperm. They used laser radiation with a wavelength of 830 nm on sperm from men with asthenospermia, and found that sperm motility improved depending on the laser strength and time after exposure.
Effects of red light on sleep inertia
This study reports on the effect of red light therapy against sleep inertia. This can be very important for people who work night shifts.