Skin Healing and Inflammation: This study investigates the effect of light therapy on our cells’ mitochondria. Researchers demonstrated that light therapy causes energy to move more efficiently throughout your b ody which improves physical function, speeds the healing process, and lowers inflammation and pain. 
Increased Circulation: Researchers in this study identified an increase in circulation following red light therapy, indicating tissues are receiving mor e oxygen and other nutrients important for healing — while also ridding themselves of toxic byproducts. 
Chronic Inflammation: A 2017 study shows that red light therapy alleviates both acute and chronic inflammation by increasing blood flow to the damaged tissues. 
Collagen Production: In study after study, researchers have measured much higher natural collagen levels in the models and patients treated with natural light, especially with near infrared light. [4,5,6,7]
Younger Looking Skin: Several human trials and laboratory studies on red light therapy have demonstrated that daily red light treatments help your skin regenerate faster, helping you look younger. A 2017 trial assessed 30 women ages 30 – 55 who used red light therapy. The team concluded that red light therapy “had positive effects on wrinkle and moisture content of adult women’s faces.”. [8,9,10,11]
Red Light Therapy for Eczema & Psoriasis: We’re just beginning to learn about the positive effects light therapy can have on psoriasis. Researcher s cited a recent study that found “no adverse side effects and a resolution of psoriasis” for patients who weren’t helped by traditional treatments. 
Red Light for Depigmentation Conditions like Vitiligo: Red light has a strong record of improving re – pigmentation for skin with de – pigmentation conditions like vitiligo.  Researchers have shown that light therapy “can increase pigmentation by stimulating melanocyte proliferation and reduce depigmentation by inhibiting autoimmunity.” 
An extensive 2013 meta analysis of red light therapy’s effects on skin and concluded:
Red Light Lessens Wrinkles and Signs of Aging: The analysis cited numerous studies showing how light therapy counteracts signs of aging in skin. Red and near infrared light has been sho wn to boost collagen, smooth wrinkles, and enhance skin tone, for an overall younger look. 
Red Light Rejuvenates Skin: The researchers noted red light was particularly effective for healing and skin regeneration, as well as reducing inflammation. 
Red Light Therapy for Treating Acne: Researchers in 2013 highlighted studies showing red and near infrared light to be effective for the treatment of acne. Of note, they explained that red light impacts sebum production, which contributes to acne, in additi on to the control of cytokines, which impacts skin inflammation. 
Less Cellulite with Red Light Therapy: In a 2011 study on red light therapy and cellulite reduction, women ages 25 – 55 were divided into two groups: some did treadmill exercis e + red light therapy twice a week, while the other group just did treadmill exercise. The researchers presented thermographic photographs of the changes in thigh circumference and cellulite to demonstrate that red light therapy and exercise was more effec tive than just exercise alone. The study concluded that treadmill exercise and red light therapy in conjunction can improve body aesthetics. 
Smaller Waistline, Less Girth with Red Light: This 2011 double – blind, randomized study performed light therapy at 635 – 680 nanometers (nm) on participants for four weeks and recorded effects on the size of their waistline. At the end of the study, participants had achieved a statistically significant reduction in waistline girth. 
Red Light Therapy for Target ed Fat Loss: In a similar study published in Lasers in Surgery Medicine, participants who received light therapy showed a significant reduction in overall circumference, including numerous parts of the body. Researchers concluded that light therapy can red uce the circumference of the specific areas of the body that are treated with natural light. 
Less Body Fat: A 2018 triple – blind, placebo – controlled trial assessed red light therapy’s effects on people doing endurance training. Researchers found pre – ex ercise treatment can “decrease the body fat in healthy volunteers when compared to placebo.” 
Weight and Obesity Control: A study conducted by Brazilian researchers in 2015 assessed the effects of light therapy and exercise on 64 obese women, ages 20 to 40. One group exercised and received red light therapy treatments, while the control group just exercised. They concluded that red light therapy and exercise together were more effective than just exercise in reducing fat mass. Researchers also observed an increase in skeletal muscle mass. They wrote:
“Our results demonstrated for the first time th at light therapy enhances the physical exercise effects in obese women undergoing weight loss treatment promoting significant changes in inflexibility metabolic profile.” 
A recent study published in 2018 also evaluated obese young women and found simi lar results. Some followed an exercise regimen + red light therapy, while the control group just did the exercise. The women who did exercise and red light therapy saw more significant changes in fat mass and insulin variables. Researchers concluded:
“It was demonstrated that exercise training associated with light therapy promotes an improvement in body composition and inflammatory processes. The light therapy group especially presented positive modifications of WNT5 signaling, FGF – 21, and ANP, possible biomarkers associated with browning adiposity processes. This suggests light therapy is applicable in clinical practice to control obesity.” 
A placebo – controlled clinical trial in 2015 noted similar improvements with obese women who exercised and were treated with red light therapy. Researchers also concluded red light therapy could control cardiometabolic risk factors in obese populations. 
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