The effect of hyaluronic acid on removing eye wrinkles can generally last for about one year, however, it is also related to personal skin and metabolism. Because everyone's skin and water secretion are different, the time for removing crow's feet by hyaluronic acid will be different. But three months after the first injection of hyaluronic acid to remove crow's feet, the second injection can last longer. This method is very effective in removing crow's feet.