The principle of the red light therapy facial mask mainly utilizes the biostimulatory effect of red light to have a positive impact on skin cells and tissues, thereby improving the health condition and appearance of the skin. The following are its specific principles:
- Promoting cell metabolism: Mitochondria in skin cells are the energy factories of the cells, and cytochrome c oxidase is a key enzyme in the mitochondrial respiratory chain. The red light emitted by the red light therapy facial mask (usually with a wavelength between 600 and 700 nanometers) can be absorbed by cytochrome c oxidase, enhancing the activity of this enzyme. This will promote the function of mitochondria, accelerate the aerobic respiration process of cells, and thus generate more adenosine triphosphate (ATP). ATP provides energy for various metabolic activities of cells, such as protein synthesis and cell division, and further promotes the metabolism of skin cells, enhancing the vitality and regenerative ability of cells.
- Stimulating collagen production: Fibroblasts are the main cells that synthesize collagen and elastin fibers. Red light irradiation can activate the signaling pathways within fibroblasts, prompting them to increase the synthesis and secretion of collagen and elastin fibers. Collagen is an important structural protein of the skin, which can maintain the elasticity and firmness of the skin and reduce the appearance of wrinkles. With aging or the influence of external environmental factors, collagen in the skin will gradually be lost. The red light therapy facial mask helps to maintain the youthful state of the skin by stimulating collagen production.
- Improving skin blood circulation: After red light irradiates the skin, vascular endothelial cells can release vasoactive substances such as nitric oxide. Nitric oxide can relax vascular smooth muscle, leading to vasodilation and thus increasing the blood flow in the skin. Good blood circulation can provide skin cells with sufficient oxygen and nutrients, such as glucose, amino acids, and vitamins, while removing metabolic waste products, such as carbon dioxide and urea. This helps to maintain the normal metabolism of skin cells, keeps the skin in a healthy state, and makes it look more ruddy and shiny.
- Anti-inflammatory and repair effects: In the skin inflammatory response, immune cells will release a variety of inflammatory mediators, such as histamine and leukotrienes, leading to local vasodilation, increased permeability, and symptoms such as redness, swelling, and pain. Red light has anti-inflammatory effects. It can inhibit the release of inflammatory mediators and reduce the inflammatory response. At the same time, red light can also promote the repair and regeneration of skin cells and accelerate the healing of damaged tissues. For acne-prone skin, sensitive skin, and other skin types with inflammation or damage, the red light therapy facial mask can play a role in repair and soothing, helping the skin return to normal.