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As of May 10, 2026, a red light therapy device highlighted as editor-approved by Prevention is available at a discount of $100. Users of the technology have described the results of the device as being like turning back the clock 10 years.

Red light therapy, also known as photobiomodulation or low-level laser therapy, uses specific wavelengths of light to target skin cells. This non-invasive approach is frequently used in wellness and dermatological settings to address signs of aging and improve skin texture.

The Science of Photobiomodulation

The technology typically utilizes light in the red and near-infrared spectrum. These wavelengths are capable of penetrating the skin’s surface to reach the mitochondria, which are the energy-producing organelles within the cell.

When mitochondria absorb this light, it is believed to stimulate the production of adenosine triphosphate (ATP). Higher levels of ATP provide cells with the energy necessary to perform essential functions, including cellular repair and regeneration.

In the dermal layer of the skin, this process can stimulate fibroblasts. Fibroblasts are the cells responsible for the production of collagen and elastin, the proteins that provide the skin with structural support and elasticity.

Skin Benefits and Applications

By promoting the synthesis of collagen, red light therapy is often used to reduce the appearance of fine lines and wrinkles. The increase in collagen helps to maintain skin firmness and can lead to a smoother overall complexion.

Beyond anti-aging effects, red light therapy is sometimes employed to manage inflammation and improve skin tone. It may help soothe redness and support the skin’s natural healing processes following various dermatological treatments.

The specific wavelength used often determines the depth of penetration. Red light, typically around 630 to 660 nanometers, targets the epidermis and dermis, while near-infrared light penetrates deeper into the subcutaneous tissues.

Usage and Safety Considerations

For those utilizing home-based devices, consistency is generally required to achieve visible results. Most usage protocols suggest applying the therapy several times per week over a period of several weeks or months.

Safety precautions are necessary when using light-based devices. Many manufacturers recommend the use of protective eyewear to prevent direct exposure to the light source, depending on the intensity and design of the specific device.

While red light therapy is generally considered safe for various skin types, individuals with certain medical conditions or those taking photosensitizing medications should consult a healthcare provider before beginning a treatment regimen.