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What Does LED Do To Your Body?
John Tsenekos
May 05, 2025
7 MINS READ
LED technology — LED being short for Light Emitting Diode — has transformed the way we experience light, both in everyday life and in wellness routines. Unlike traditional bulbs, LEDs use a semiconductor to emit light efficiently, producing a range of colors and intensities with minimal heat. This innovation has opened new possibilities, especially in the world of Light Therapy.
In this article, we'll talk about what exactly LED is, how it differs from other types of light, and the various ways it’s used in a few types of therapies — from skincare and muscle recovery to chromotherapy. You’ll also learn how different types of LED light can affect your body, and get a closer look at how Red Light Therapy can help you upgrade your skincare routine and address visible signs of skin aging.
What Is LED?
An LED, or Light Emitting Diode, is a small electronic component that produces light when electricity flows through it. Unlike traditional light bulbs, which create light by heating a wire or using gas, LEDs make light through a process called electroluminescence. This means that when electricity passes through the special material inside the LED, tiny particles called electrons move and release energy as light.
LEDs are known for being very energy efficient. They use much less electricity than older types of light bulbs because they turn most of the energy into light instead of heat. This makes them a popular choice for everything from home lighting to electronic screens and even devices used in wellness and therapy.
Another important feature of LEDs is their long lifespan. LEDs can last for tens of thousands of hours, which is much longer than traditional bulbs. They are also sturdy and can handle bumps or vibrations without breaking easily.
LEDs are also very versatile. They can be made to shine in many different colors and strengths by changing the materials inside them. This flexibility means LEDs are used in a wide variety of products, including traffic lights, TV screens, and special devices for therapies that use specific colors or types of light to achieve certain effects.
Why LEDs Are Preferred for Therapeutic Applications
LEDs are ideal for therapeutic uses because they can be engineered to emit very specific wavelengths of light. This precision allows for targeted treatments, such as Red Light Therapy for skincare or chromotherapy for mood and wellness. LEDs are also safe to use on the skin because they don’t get hot, and their energy efficiency means devices can be used for longer periods without overheating. Additionally, LEDs do not contain harmful substances like mercury, making them safer for both users and the environment.
What Does LED Do To Your Body? How LEDs Are Used in Different Types of Therapies
Light Therapy for Skincare
Light Therapy is a non-invasive skincare approach that uses specific wavelengths of LED light to address visible skin concerns and support a healthier-looking complexion. This technology harnesses the power of different wavelengths of light to target different skin concerns.
Red Light Therapy uses wavelengths around 630 nm to target visible signs of skin aging; it's particularly helpful in reducing the appearance of fine lines and smoothing the look of wrinkles, leaving skin looking refreshed and rejuvenated. Blue Light Therapy at 415 nm is designed to destroy acne-causing bacteria and deter future pimples by reducing sebum production, making it a valuable tool for those looking to maintain clearer skin. Amber Light Therapy at wavelengths of 605 nm helps improve the look of uneven skin tone and reduces the appearance of puffiness, while Near-Infrared Light Therapy at 830 nm supports overall skin radiance and revitalization.
You can experience these benefits at home with advanced devices like the Wrinkle Retreat Light Therapy Mask and the Eye Recovery Pro Mask. The Wrinkle Retreat Light Therapy Mask delivers a combination of Red Light and Near-Infrared Light Therapy across your entire face, helping to visibly reduce the appearance of fine lines, wrinkles, and puffiness, while the Eye Recovery Pro Mask is designed specifically for the delicate eye area, using targeted Red, Amber, Deep Red, and Near-Infrared Light wavelengths to tackle virtually all signs of skin aging around the eye area like fine lines, wrinkles, dark circles, puffiness, and more.
Muscle Recovery and Pain Relief
LED Light Therapy is increasingly used to support muscle recovery and provide relief from minor aches and pains. This approach relies on specific wavelengths of light, particularly in the near-infrared range, to penetrate deep into the tissues and promote beneficial effects.
When applied to the skin, LED Light Therapy can help increase local blood circulation and support the body’s natural recovery processes. The light energy is absorbed by cells, which may help reduce temporary inflammation and promote cellular repair. This can be especially helpful after exercise, as it may ease muscle soreness and speed up recovery time.
This type of Near-Infrared Light Therapy uses wavelengths that are invisible to the naked eye but can reach deeper layers of muscle and joint tissue. This deeper penetration allows the light to target areas that are often affected by exercise or physical activity. Near-Infrared Light is commonly used by athletes and fitness enthusiasts to help reduce the feeling of muscle stiffness and support overall muscle health after workouts.
There are a variety of devices designed for muscle and joint support using LED and Near-Infrared Light Therapy. These include handhelds, flexible pads, and larger panels that can be positioned over specific areas of the body. Some devices are portable and battery-powered, making them convenient for use at home or on the go. These tools are often used on areas like the back, shoulders, knees, and arms to provide targeted support where it’s needed most.
Important Note: While Light Therapy for muscle recovery may use what sounds like the same colors of light as those used in skincare devices, there are differences to note! The specific wavelengths, bulb design, and overall device construction are tailored for their intended respective uses — this means that muscle recovery devices are not designed to provide skincare benefits, and skincare devices are not intended for muscle or joint support. For results, always use the device that matches your specific goal!
Chromotherapy (Color Therapy)
Chromotherapy, also known as Color Therapy, is a wellness practice that uses different colors of light to support mood, relaxation, and overall sense of well-being. This approach is based on the idea that specific colors can have unique effects on your emotional state and energy levels.
Chromotherapy involves exposing the body or environment to colored light, with each color believed to influence mood in a particular way. For example, blue light is often associated with calmness and relaxation, while yellow or orange light may be used to promote feelings of energy and positivity. The practice can be experienced in dedicated wellness spaces, spas, or even at home with specialized devices.
LEDs are ideal for chromotherapy because they can produce a wide range of colors with precision. Blue and green lights are commonly used to help create a peaceful, soothing atmosphere, which may help reduce feelings of stress. Red or orange lights are sometimes used to encourage a sense of warmth and vitality. Some chromotherapy sessions involve cycling through multiple colors to create a balanced, uplifting experience.
There are many devices designed for chromotherapy, including light panels, lamps, and even bathtubs or showerheads with built-in LED lighting. Some wellness centers offer chromotherapy rooms where you can relax under colored lights, while at-home devices allow you to personalize your environment with the colors that best suit your mood or needs.
As noted above, chromotherapy devices won't deliver skincare results or muscle recovery results — each LED device is specifically designed for different results and goals, so choose your light therapy device (or devices!) accordingly.
Conclusion
LED technology has transformed the way we can approach wellness and skincare, offering targeted solutions through various forms of Light Therapy.
Whether you’re interested in supporting healthier-looking skin, aiding muscle recovery, or enhancing your mood with chromotherapy, there’s an LED Light Therapy option designed to fit your needs.
If you're ready to take the dive into LED light for skincare but need a little guidance, take our Device Quiz here! We'll recommend a Light Therapy device for you based on your skin, age, goals, and more!
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