Tetrahydropyrantriol CAS 439685-79-7 Key to pro-xylane’s effectiveness is its ability to stimulate the production of essential skin components such as collagen and hyaluronic acid. By promoting collagen synthesis, proxylan helps improve skin firmness and elasticity, reducing the appearance of fine lines and wrinkles. Additionally, its hydrating properties support skin’s natural moisture barrier for a plumper, radiant complexion.