Pro-Xylane, a xylose derivative with anti-aging activity, can promote the synthesis of collagen, make the skin more resilient and elastic, improve the neck fine lines, and prevent aging. The component is hydroxypropyl tetrahydropyranotriol, which is a glycoprotein synthesized from the sugar extraction of beech trees, which can promote the production of glycosaminoglycans. When entering the skin tissue, it promotes the formation of proteoglycans, which exist between the skin collagen and absorb water to maintain the skin elasticity. Bosum is a mixture of glycoproteins derived from xylose. Because xylose is abundant in beech trees and has the ability to promote the production of mucopolysaccharides (GAGs).