Hyaluronic acid can make a girl young and beautiful, and it can also turn a guy into a man. The amount of hyaluronic acid in the skin determines the age of the skin, and this is a beauty rule that applies to both men and women! Hyaluronic acid (HA), the scientific name for hyaluronic acid, exists in the dermis of the skin and is a transparent, viscous, gel-like substance responsible for storing moisture in the skin, filling the skin tissue, and ensuring fullness and elasticity. However, with age and aging of the body, the skin will lose a lot of hyaluronic acid and lead to a gradual decline in the absorption function of the skin, and it is scientifically proven that the higher the nutrient content of skin care products, the more difficult it is to be absorbed by the skin, the skin can not effectively absorb the high nutrients given by beauty care and beauty products and slowly aging! Dryness, sagging, roughness, dullness, yellowing, discoloration and other aging phenomena gradually appear, and the skin slowly loses its youthful glow.