I have been to the professional manufacturer of medical injectable sodium hyaluronate gel for 14years. We have our own GMP standard plant and scientific research team, so we can provide you for the products with good quality and competitive price About our non-cross linked medical hyaluronic acid gel, we have three kinds. they are used in Viscoelastic Solution for Ophthalmic Surgery, Osteoarthritis Viscoelastic and Gynecologic Surgery Viscoelastic. For more information, please feel free to contact me. I believe that you will love it after the trial order. Best regards, Susan