PRO-Xylane Anti-Aging Cosmetic a xylose derivative with anti-aging actives, can promote the synthesis of collagen, make the skin stronger and more elastic, improve fine lines on the neck, and prevent aging. Boseine is a mixture of glycoproteins derived from xylose. Since xylose is abundantly present in beech trees, it has the ability to promote the production of glycosaminoglycans, namely glycosaminoglycans (GAGs). As Boseine extracted from beech trees, its effect is similar to that of xylose.PRO-Xylane Anti-Aging Cosmetic