Red light therapy mainly uses red light with a wavelength of 630-660 nanometers and near-infrared light with a wavelength of 810-850 nanometers. In these two wavelengths, there are different functions and applicable ranges.
![How many kinds of red light are there and how are they different? What is the difference between benefits? 1]()
The red light of 630-660 nanometers is mainly suitable for the treatment of the superficial layer of the skin, which can promote skin regeneration, increase collagen production, improve skin elasticity, and improve skin fine lines and pigmentation. In addition, red light can also promote blood circulation, which has a certain relief effect on mild muscle pain and arthritis.
Near-infrared light of 810-850 nanometers can penetrate deeper skin layers and promote the flow of blood, oxygen and nutrients, thereby accelerating tissue repair and cell regeneration. In addition, near-infrared light can also reduce inflammation, reduce symptoms of diseases such as muscle pain and arthritis, and help improve the body's immunity.
With the changes in the market and people's increasing demand for red light therapy lamps, the products of red light therapy lamps are becoming more and more diversified, such as red light therapy panels, red light desktop lamps, red light therapy beds, red light masks,red Light physiotherapy belt and hat so on, I also believe that red light physiotherapy equipment will also make great contributions to human health.
There are mainly the following types of red light in the context of red light therapy:
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Low - level laser light (LLLT) in the red spectrum
- Characteristics:
- LLLT is a concentrated form of light energy. It has a relatively narrow wavelength range, usually around 630 - 670 nm. The light is highly directional and coherent, which means the photons are in phase and can be focused more precisely on a target area.
- Benefits:
- Due to its precision, it can penetrate deeper into tissues. For example, in the treatment of muscle and joint problems, it can reach deeper muscle fibers and joint capsules to stimulate cellular metabolism more effectively. It's often used in sports medicine for muscle recovery and in orthopedic settings for joint pain relief.
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Broad - spectrum red light
- Characteristics:
- It has a wider range of wavelengths within the red - light range. It is less focused and coherent than LLLT. The wavelengths can typically cover from about 600 - 700 nm. It is usually produced by light - emitting diode (LED) panels that emit a more diffused light.
- Benefits:
- It's more suitable for surface - area treatments such as skin conditions. For example, in skincare, it can cover a larger area of the face or body to improve skin texture, reduce inflammation associated with acne, and promote collagen production over a wide skin area. It's also more user - friendly for home - use devices as it doesn't require the same level of precision as LLLT.
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Pulsed red light
- Characteristics:
- Pulsed red light delivers light energy in short bursts or pulses. The frequency and duration of these pulses can be adjusted. The wavelength is usually in the typical red - light range, similar to other types, around 620 - 660 nm.
- Benefits:
- The pulsing effect may enhance the biological response of cells. Some studies suggest that pulsed red light can be more effective in stimulating cell regeneration. For example, in wound - healing applications, the pulsed nature of the light might help to better regulate the cell - cycle of fibroblasts and other cells involved in tissue repair, potentially leading to faster wound closure.
