HYALURONIC ACID ASSOCIATES, COMPOSITION CONTAINING THEM, PROCESS FOR PREPARING THE COMPOSITION, PROCESS FOR PREPARING ZINC HYALURONATE AQUEOUS SOLUTION

摘要

Complexes of deprotonated hyaluronic acid with 3d metal ions of the 4th period of the Periodic Table and compositions containing these complexes as active ingredients or carriers. A process for the preparation of the complexes and compositions (pharmaceutical and cosmetic compositions) containing these complexes as active ingredients are disclosed in which zinc hyaluronate is preferably used as active ingredient.