Pro-Xylane (Standard) is the standard substance of Pro-Xylane, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Pro-xylane (Hydroxypropyl tetrahydropyrantriol) is a C-glycoside, a xylose derivative, that stimulates the production of glycosaminoglycans (GAGs) and heparan sulfate proteoglycans (HSPGs) and induces a higher deposition of proteins in basement membranes and dermal-epidermal junctions (DEJs). Pro-xylane is used to maintain skin elasticity and improve skin aging.