HYALURONIC ACID GEL, PROCESS FOR PRODUCING THE SAME, AND MEDICAL MATERIAL CONTAINING THE SAME

摘要

A hyaluronic acid gel is formed by: causing hyaluronic acid to coexist with water present in such an amount as to result in a hyaluronic acid concentration of 5 wt.% or higher and with an acid ingredient present in an amount of at least mole equivalent to the carboxyl groups of the hyaluronic acid; and maintaining the coexistent state.