Hyaluronic Acid provides the fluid matrix for joint lubrication skin hydration and skin repair.*Jarrow FORMULAS Hyaluronic Acid is a low-molecular weight preparation derived from biological fermentation. It is clinically documented to be bioavailable and to improve hydration of the skin.*For best results use with Jarrow FORMULAS JarroSil the biologically Activated SiliconOther products from HerbsPro