The red light beauty function
The hospital's red and blue light therapy device will use red light to illuminate the acne-prone skin area after the blue light is irradiated.
What is the role of red light here?
It turns out that red light can penetrate deep into the dermis, and after being absorbed by the cells and tissues, the heat increases, the blood circulation is accelerated, and the metabolism begins to speed up. On the one hand, more nutrients will be transported from the blood, and on the other hand, metabolic waste will be taken away. It's like… a biochemical factory that's spinning up.
When the hospital uses red light to irradiate the skin, it is 1-4cm away from the surface of the skin for at least 10 minutes each time.
For household LED Light Therapy Beauty Mask, considering the safety, the distance from the skin surface is at least 10cm, generally around 20cm, and the thermal effect of red light on the skin will be weaker than that of the hospital.
In my opinion, the thermal effect of red light on the skin is similar to that of exercising, taking a hot bath, steaming your face, and massaging your skin. They are all achieved by accelerating blood circulation and promoting body metabolism.