Hyaluronic acid's greatest effect lies in moisturizing, keeping skin elastic, locking water molecules and moistening and lubricating tissues. Hyaluronic acid for injection is a purified component. After injection, it will fuse with the original hyaluronic acid in the body, the skin will swell, and wrinkles will flatten and swell. Hyaluronic acid will be gradually absorbed by the human body over time, and it also has the advantage that if it is not satisfied after injection, it will recover after a period of time, without any harm to the body, because the material itself is a component of the skin and will be discharged with metabolism.