Bioavailable Clinically Documented Naturally Derived Skin Hydration and Joint Support Dietary Supplement Gluten Free Vegan Hyabest (S) LF-P Suitable for Vegetarians/Vegans 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.