K4008-Comfytemp Portable Red Light Therapy Wrap for Knee

A:
This product has a default timer setting in the absence of selecting a timer via the app, the product will shut down after 20 minutes.
You can restart the device for further use. However, we do not recommend using it multiple times on the same body part. According to scientific evidence, longer usage does not necessarily yield better results, scientific evidence indicates diminishing returns, It's sufficient for 20-30 minutes. Prolonged use increases the likelihood of cellular dehydration.

A:
In the NIR mode, the lights emit 850nm near-infrared light, which is invisible to the naked eye. Therefore, it's not that the lights are not on, it's just that our eyes cannot perceive this wavelength.
By checking the indicator light in the battery case, we can observe that it is still on, indicating that the device is still active. Additionally, after using this mode for a while, one can feel the heat generated by the device.

A:
The red light therapy works in two ways, through photobiomodulation and thermal effects. Photobiomodulation mainly stimulates mitochondria within cells, accelerating cellular metabolism, promoting cellular activity, and stimulating the formation of collagen in the skin. This aspect takes some time before noticeable effects occur. On the other hand, the thermal effect is immediately perceptible. The generated heat is felt within the body, unlike heating pads, which primarily affect the skin surface.
Abundant scientific data indicates that using it for 20 minutes per day can yield noticeable results as early as three weeks.

A:
High frequency vibrations can cause slight friction on the skin surface and stimulate nerve endings, leading to itchiness. This is a common reaction and will disappear after a while without causing any harm to the body.
You can adjust the vibration intensity or duration, or apply moisturizer or lubricant to reduce friction before using the vibration mode.

A:
"Pulse" refers to light emitted intermittently rather than continuously. Our Pulse mode uses a combination of continuous red light and pulsed infrared light. However, since infrared light is invisible to the naked eye, the Pulse mode and Red+NIR mode may appear the same to the user.
Scientific Support: Research indicates that continuous red light is more effective for treating the surface layers of the skin, while pulsed infrared light has a more significant impact on deeper tissues. This combination optimizes the therapeutic effects on both surface and deep tissues.