But what about the very popular "phototherapy beauty" now? Is there a scientific basis for the principle of action? Will it cause harm to our skin? So today, let`s discuss with you the latest technology of phototherapy beauty and what advantages it has compared with other popular beauty technologies (RF, Thermomagnet, Microcurrent, etc.).
First, let's get to know what light is.
--This can help us better understand which kind of light is to be "prevented", and which light can be better used by us to beautify the skin.
(*Note: LED is a semiconductor device that converts current into a narrow and stable current spectrum. Compared with general lasers, the output power is lower, and it is softer than the light of the same wavelength. Therefore, LED light waves are not only It damages tissue cells, and does not cause occasional damage to the eyes like ordinary lasers. It can also stimulate the regeneration of skin collagen through light waves, thereby slowing down skin aging and achieving the effect of firming the texture.)
Since the refraction of different wavelengths allows the colors to be distinguished, they also have different medical effects accordingly:
Blue LED: The antiseptic effect on cells and sebaceous glands can help eliminate acne and blackheads.
Red LED: penetrate deep into the skin, promote collagen production, eliminate slack, and restore elasticity;
Light treatment with blue LED:
Blue light is believed to have the effect of killing acne bacteria. Acne bacteria have a substance called porphyrin, which produces active oxygen under the light of the blue LED. Therefore, if you continue to bathe in strong blue light, the acne bacteria itself will be strongly oxidized and killed. In addition, blue light also has the effect of reducing sebum secretion, so it can be expected to sterilize the pathogenic bacteria of acne while preventing the deterioration of existing acne.
Light treatment with red LED:
Red LED light is believed to act on mitochondria and activate cells. Because it also has the ability to improve the effect of a macrophage (phagocyte) of immune cells, red LEDs with a wavelength of 633 nm are most commonly used in medical beauty. It can have anti-aging and other skin care effects, with a wide range of effects:
Anti-Aging
Promote collagen production
Improve small wrinkles
Improve dull skin
Improve dark circles
Improve skin elasticity
Promote skin metabolism and promote skin regeneration
Adjust the texture of the skin
Reduce acne redness and acne marks
Inhibit inflammation of swelling and acne
Promote blood circulation and brighten skin tone.
Medical research on LEDs is also continuing to deepen. For example, green LED can improve pigmentation and relieve jaundice; purple LED can kill mold; yellow LED can activate cell repair function.
Maybe you don`t know that the famous NASA was the first to use LEDs. At first, it was to cultivate plants in space. It was discovered that the effects of LEDs were extraordinary. Later, they were used in astronaut trauma repair research and found that the effects of LEDs after irradiation. DNA synthesis in muscle cells has actually doubled by 5 times! What`s even more amazing is that there are no reports on the side effects of LEDs on the human body. It was also announced at the LLLT (Low Power Laser Therapy) seminar held in the United States in 2009 that LEDs only act on stressed cells and will not affect them. The news of normal cells~~ (I have to say, this is too reassuring~!)
Most of the phototherapy beauty instruments currently on the market will also be equipped with infrared function, which works together with the red LED. Can infrared rays be as safe and effective as LEDs?
As I was worried at the beginning, the latest term for anti-photoaging is precisely anti-infrared. (Yes, even the Japanese skin care product Daniel recently developed a special anti-infrared sunscreen...) We can see from the picture above that 50% of the sun's rays come from infrared rays (according to the length of the wavelength, it is divided into Near-infrared and far-infrared), and the culprit of photoaging that we have always thought-ultraviolet light, actually only accounts for 1/10 of the sunlight!
So is infrared skin beautifying really okay? Let's take a drink and calm down, because this will immediately come to another important point today, the latest light therapy technology-near infrared, which is called "white LED" by Japanese medical beauty.
Near-infrared rays can pass through the dermis to the muscles! In other words, if the daily sunlight is completely ignored, of course, it will accelerate the photoaging of muscles and skin, make our face shrink and dry, and accelerate the destruction of collagen in the dermis;
But if it is only used in a small amount of reason, it has the completely opposite effect-activates the original muscle cells "myofibroblasts" and promotes the production of collagen! !
It sounds amazing! It is necessary to know that anti-aging and keeping girly muscles forever is nothing more than increasing collagen, so that the skin will be firm and elastic; plus the red light and blue light introduced before for different skin and pore problems, wouldn`t it be very powerful? "Comprehensive player"? It's no wonder that phototherapy beauty has become more and more popular recently, and beauty instruments with phototherapy effects are also popular.