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You may have heard of\u00a0red light\u00a0therapy as a new wellness must-have, with the potential to regrow hair, improve acne, and aid in muscle recovery.\u00a0It\u2019s\u00a0not just wellness influencers and luxury spas leading the charge to red light therapy, though. Dermatologists, sports medicine physicians, and medical researchers are also taking notice of this evolving trend and studying its real-world applications. As interest grows, so does the conversation around what it can\u00a0actually do, how it works, and who\u00a0it\u2019s\u00a0best suited for.<\/p>\n
Before you dive in, though,\u00a0it\u2019s\u00a0helpful to know the science behind how\u00a0red light\u00a0therapy works and\u00a0if\u00a0it\u2019s\u00a0the right treatment for you. The\u00a0benefits of red light therapy\u00a0are potentially far-reaching, but they depend on consistency, proper use, and the specific concern\u00a0you\u2019re\u00a0addressing. We talked to a\u00a0doctor of physical therapy\u00a0and a sports medicine expert to take a closer look at what red light therapy is, what the research says, and how it can safely and effectively work for you.<\/p>\n
What is red light therapy?<\/p>\n
Red light therapy came about in the 1990s as a result of\u00a0NASA\u2019s experimentation\u00a0with LED technology for growing plants in space. When researchers noticed that cuts on the hands of astronauts working near the LED lights healed faster, they began to explore how red and near-infrared wavelengths can contribute to human cell repair. What began as a practical solution for growing plants in a low-light, low-gravity environment opened the door to a broader understanding of how light can interact with biological tissue at the cellular level.<\/p>\n
These early NASA findings, which pointed to reduced inflammation, faster wound healing, and improved cellular energy, kicked off a greater field of study around the benefits of\u00a0red light\u00a0therapy for skin health, wound healing, and even hair regrowth. Over time, researchers have expanded this field of inquiry, examining how specific wavelengths can penetrate the skin and affect the functioning of our cells.\u00a0Today, that\u00a0early research continues to inform the science behind both clinical treatments and at-home red light devices.<\/p>\n
How does red light therapy work\u00a0in\u00a0your body?<\/p>\n
Red light therapy, as it is used today, exposes the skin to specific wavelengths of light, stimulating mitochondria (the powerhouse of your cells) to increase their production of adenosine triphosphate (ATP). According to\u00a0Rachele Pojednic, Chief Science Officer at Restore Hyper Wellness, \u201cthis boost in cellular energy can promote healing, enhance skin health, reduce inflammation, and improve energy.\u201d<\/p>\n
Mia Arnold, Physical Therapist at FYZICAL Therapy and Balance Center, offered a similar view on the value of\u00a0red light\u00a0therapy. \u201cWhen cells have more energy,\u201d Arnold said, \u201cThey repair faster, calm inflammation, and function more efficiently. In\u00a0physical\u00a0rehabilitation, this often means reduced pain, improved circulation, and better tissue recovery.\u201d<\/p>\n
There are a few\u00a0different kinds\u00a0of\u00a0red light\u00a0therapy, each at different wavelengths, which are measured in nanometers (nm). The kind of benefit you get from the light depends on the wavelength, as different wavelengths penetrate the skin at varying depths and interact with tissue in distinct ways. Shorter wavelengths stay closer to the surface and are more suitable for skin concerns, while longer wavelengths reach deeper layers to affect muscles, joints, and connective tissue.<\/p>\n
Here\u2019s\u00a0a breakdown of the\u00a0different types\u00a0of\u00a0red light\u00a0therapy and how each affects the body:<\/p>\n
Red light:\u00a0At 630-700 nm, this wavelength is\u00a0visible to the eye\u00a0and works primarily on the surface of the skin. \u201cIt\u2019s ideal for concerns like skin health, wound healing, and superficial tissue repair,\u201d\u00a0Pojednic\u00a0shared.<\/p>\n
Near infrared light:\u00a0At 800-850 nm, near-infrared light is no longer\u00a0visible to the eye. The longer wavelength allows it to penetrate more deeply into the tissues, reaching muscles, nerves, and\u00a0bone. This type of\u00a0red light\u00a0therapy is used to help manage pain and accelerate recovery.<\/p>\n
Far-infrared light:\u00a0\u201cUnlike red and near-infrared light,\u201d\u00a0Pojednic\u00a0shared, \u201cFar-infrared is felt primarily as heat and is the technology used in infrared saunas. It works by raising the body\u2019s core temperature to promote a deep sweat and cardiovascular boost.\u201d<\/p>\n
What can red light therapy help with?<\/p>\n
With the growing attention around red light therapy in the wellness space,\u00a0it\u2019s\u00a0natural to wonder what it can realistically help with.\u00a0That\u2019s\u00a0where input from experts\u2014and the research\u2014becomes especially important.<\/p>\n
From a research perspective, the strongest evidence for the efficacy of\u00a0red light\u00a0therapy is in the areas of\u00a0reducing inflammation, which makes it a helpful tool for treating joint pain, traumatic injuries, and lung conditions like asthma or COPD. There is also evidence to support the role of\u00a0red light\u00a0therapy in improving muscle healing and recovery, particularly in cases of\u00a0delayed onset muscle soreness\u00a0(DOMS).\u00a0Pojednic\u00a0echoed these findings, calling red light therapy a powerhouse for accelerating recovery. \u201cIt is frequently used for easing symptoms of chronic pain, athletic recovery, wound and injury healing, and treating inflammatory skin health conditions,\u201d she said.<\/p>\n
There is also promising research highlighting the role of\u00a0red light\u00a0therapy in rejuvenating skin and treating conditions of the skin and hair.\u00a0One\u00a02025\u00a0study\u00a0showed\u00a0an improvement in acne in participants who used at-home red light therapy devices.\u00a0Another 2023\u00a0study\u00a0of at-home red light therapy masks showed a decrease in the depth of crow\u2019s feet wrinkles and an increase in the skin\u2019s thickness. Red light therapy has also\u00a0been shown\u00a0to stimulate hair growth in people with androgenetic alopecia, the most\u00a0common form\u00a0of hereditary hair loss.<\/p>\n
Here is a list of specific conditions red light therapy may be helpful in treating:<\/p>\n
Neuropathy<\/p>\n
Arthritis and chronic joint pain<\/p>\n
Muscle soreness<\/p>\n
Injuries to muscles, tendons, and ligaments<\/p>\n
Post-surgical wounds<\/p>\n
Acne<\/p>\n
Scarring<\/p>\n
Psoriasis<\/p>\n
Eczema<\/p>\n
Rosacea<\/p>\n
Fine lines caused by aging<\/p>\n
Androgenic alopecia (hair loss)<\/p>\n
Red light therapy should not replace care from a licensed medical professional.\u00a0It\u2019s\u00a0best used under\u00a0appropriate guidance\u00a0and, when needed, alongside other treatments rather than as a standalone solution. Results of\u00a0red light\u00a0therapy will vary depending on the individual, the condition being addressed, and how the therapy is used. In most cases, consistent and proper use over time is necessary for meaningful improvement.<\/p>\n
Types of\u00a0red light\u00a0therapy devices<\/p>\n
Photobiomodulation, another word for red light therapy, is delivered in a variety of ways, from at-home\u00a0red light therapy masks\u00a0to large panels used in clinical settings.<\/p>\n
Red light therapy devices for portable or at-home use include wearable masks, handheld wands, small panels, caps or hats, belts, and pads. In a clinic, you may also see portable devices, but they are\u00a0likely\u00a0powerful than what you can safely use at home without professional supervision. Clinical settings, like dermatology practices or physical therapy centers, may also use large\u00a0photobiomodulation\u00a0devices that treat the entire body, like beds or saunas.<\/p>\n
The difference between at-home devices and those used in a clinic usually comes down to \u201cpower and coverage,\u201d said\u00a0Pojednic. \u201cClinical devices are high-powered and precisely calibrated\u2026allowing near-infrared light to reach deeper tissues\u2014muscle, connective tissue, dermis\u2014unlocking benefits well beyond skin: recovery, pain reduction, mood, and circulation.\u201d\u00a0Pojednic\u00a0added, though, that red light therapy masks can be an effective at-home treatment for \u201cmaintenance and mild skin concerns.\u201d<\/p>\n
No matter what device\u00a0you\u2019re\u00a0using, red light therapy is typically painless and\u00a0generally a\u00a0relaxing experience.\u00a0You\u2019ll\u00a0feel gentle warmth coming\u00a0from\u00a0the device, but you should not feel intense heat.<\/p>\n
Who is red light therapy good for?<\/p>\n
The experts we spoke to agree that most healthy adults are good candidates for red light therapy, especially if they are actively managing pain or inflammation, or are looking to\u00a0optimize\u00a0recovery. \u201cFor many of our [physical therapy] patients,\u201d Arnold shared, \u201cRed light therapy becomes the turning point in their recovery. It\u00a0doesn\u2019t\u00a0replace physical therapy, but it enhances it. When we combine movement, manual work, and\u00a0photobiomodulation, we often see progress\u00a0that\u2019s\u00a0faster and more sustainable.\u201d<\/p>\n
Who should not use red light therapy?<\/p>\n
While red light therapy is\u00a0generally safe, it\u00a0isn\u2019t\u00a0ideal for everyone. People with a history of skin cancer or those who are sensitive to light, either due to medications or conditions like lupus, should speak with a healthcare provider before using it. This is also true for anyone who is pregnant, has epilepsy, or has an acute injury or\u00a0illness.<\/p>\n
Also, anyone who uses red light therapy should follow proper guidelines, as excessive exposure can lead to side effects like skin irritation, redness, or, in rare cases and with high-intensity\u00a0devices, burns. As with any treatment, red light therapy is best approached with a clear understanding of your individual health profile and input from a qualified professional.<\/p>\n
People considering red light therapy should know\u00a0it\u2019s\u00a0not a cure-all wellness tool. Still, there is strong research and clinical evidence to suggest it can play a helpful role in supporting skin health, reducing inflammation, and aiding recovery.\u00a0It\u2019s\u00a0best to think of\u00a0red light\u00a0therapy as one piece of the wellness puzzle, rather than as a standalone solution. As the research on red light therapy evolves, so will our understanding of how best to\u00a0incorporate\u00a0it into our wellness routines.<\/p>\n
FAQ<\/p>\n
Is red light therapy real?<\/p>\n
Yes, red light therapy, also called\u00a0photobiomodulation, is a type of therapy using red or near-infrared light to penetrate the skin and boost cellular energy. Research\u00a0suggests\u00a0red light therapy may help reduce inflammation and improve circulation.<\/p>\n
What does red light therapy feel like?<\/p>\n
Red light therapy is typically\u00a0painless\u00a0and many people find it relaxing. It is common to feel a gentle, radiating warmth from red light therapy devices, rather than intense heat.<\/p>\n
Can you use red light therapy at home?<\/p>\n
Yes, red light therapy devices, including masks and small panels, are available for home use. At-home devices are\u00a0generally smaller\u00a0and less powerful than the devices used in\u00a0clinics, but\u00a0may still be good for treating mild skin concern and muscle soreness.<\/p>\n
#red #light #therapy #Benefits<\/p>\n","protected":false},"excerpt":{"rendered":"
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