The main ingredient of this brand of toiletries is collagen，Collagen is a biopolymer, the main component of connective tissue of animals, and the most abundant and widely distributed functional protein in mammals. It is rich in amino acids such as glycine, proline and hydroxyproline required by human body. Collagen is one of the most important components of the extracellular matrix and has been touted for its benefits，It also plays a powerful role in this product