LEDs can slow the rate of skin aging

Sunlight causes many types of damage to the skin, but the red light of the luminescent diode can help us eliminate them.

Andrei Sommer and Dan Zhu of the University of Ulm (Germany) have studied the reaction between water molecules and substances in the skin for years. They found that when the water molecule approached a hydrophobic substance, it formed a smooth and smooth membrane, but if it was close to the impurity, it formed a glue-like mixture.

Elastin, a fibrous protein that helps skin have elastic properties can prevent skin wrinkles, which are a hydrophobic substance. But as our age increases, fatty acids, amino acids and calcium salts cling to elastin fibers, making them hydrophilic. Therefore, the reaction between elastin and water forms a mixture with glue-like properties. This mixture binds to surrounding tissues and causes elastin elasticity to decline.

Previous studies have shown that red light (with a wavelength of about 670 parts per billion) can make water molecules near elastin become more mobile, thereby reducing the amount of colloidal mixtures .

Sommer and Zhu researchers used light-emitting diodes (LEDs) to illuminate the skin around the eyes 90 seconds a day. Testing was conducted for 10 months. The results showed that the wrinkles in the illuminated skin area were significantly reduced compared to the non-illuminated skin.