The Science Behind 850 nm and 660 nm Red Light Therapy

In the realm of health and wellness, red light therapy has emerged as a revolutionary treatment, offering a myriad of benefits ranging from skin rejuvenation to pain relief. But as with any scientific advancement, the nuances matter. Among the various wavelengths used in red light therapy, two specific ones stand out: 850 nm and 660 nm. This article delves into the science behind these wavelengths, their unique benefits, and why they are integral to the best red light therapy devices.

Understanding Wavelengths: 850 nm vs. 660 nm

At its core, red light therapy involves exposing the skin to low levels of red or near-infrared light. The efficacy of the treatment largely depends on the wavelength of the light used. The 660 nm wavelength, often referred to as “red light,” is absorbed effectively by skin tissue, making it particularly beneficial for superficial skin treatments. On the other hand, the 850 nm wavelength, categorized as “near-infrared light,” penetrates deeper into the body, reaching muscles, joints, and even bones.

Benefits of 660 nm Red Light Therapy

The 660 nm wavelength offers a plethora of benefits, especially for the skin. One of the standout features of devices like the Bontanny Portable Series Red Light Therapy Device is their emphasis on the 660 nm wavelength. Here’s why:

1. Skin Rejuvenation: Exposure to 660 nm red light promotes collagen production, reducing wrinkles and fine lines. It also aids in improving skin tone and texture.

2. Wound Healing: This wavelength accelerates cell regeneration, aiding in faster wound healing and reducing scar formation.

3. Safe for All Skin Types: As highlighted by Bontanny 660nm red light therapy is non-invasive and safe for all skin types, ensuring that a wide range of individuals can benefit from its therapeutic effects.

Benefits of 850 nm Red Light Therapy

While the 660 nm wavelength works wonders for the skin’s surface, the 850 nm wavelength dives deeper:

1. Muscle Recovery: Athletes and fitness enthusiasts can benefit from faster muscle recovery post-exercise, thanks to the deep penetration of 850 nm light.

2. Joint and Bone Health: This wavelength aids in reducing inflammation in joints and can promote bone health, making it a boon for those with arthritis or osteoporosis.

3. Deep Tissue Treatment: For chronic pain sufferers, the 850 nm wavelength offers relief by targeting deep tissue layers, alleviating pain and discomfort.

Choosing the Right Device

When selecting a red light therapy device, it’s crucial to consider the wavelengths it offers. The best red light tables and devices, like the Bontanny Portable Series, emphasize the importance of both 660 nm and 850 nm red light therapy, ensuring users receive a comprehensive treatment. Moreover, devices that offer customizable treatment settings, like adjustable intensity, allow users to tailor their therapy sessions to specific needs, enhancing the overall experience.


The science of red light therapy is intricate, with each wavelength offering its unique set of benefits. By understanding the distinctions between the 660 nm and 850 nm wavelengths, individuals can make informed decisions about their treatment, ensuring optimal results. As the field continues to evolve, devices that prioritize these wavelengths, backed by professional-grade quality and customizable features, will undoubtedly lead the way.

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