The LED high-tech optical beauty mask uses photodynamic therapy to activate deep cells and improve skin metabolism. When the skin absorbs the light, it converts into intracellular energy, which strengthens small blood vessels and triggers photochemical reactions. This process increases the activity of catalase and superoxide dismutase enzymes in cells, boosting ATP decomposition and promoting the synthesis of new cells. It also stimulates the secretion of basic fibroblast growth factor and epidermal growth factor, rearranges collagen fibres, and eliminates melanin formation. These effects accelerate cell growth, increase skin elasticity, repair ageing skin, fade spots, and promote tight, clear skin.