| abstract |
Disclosed is a hydrogel containing lipoic acid, or hyaluronic acid esterified at a free hydroxyl group with lipoic acid and formic acid, or a pharmaceutically acceptable salt thereof, and zinc gluconate. Also disclosed are methods for preparing the hydrogels, compositions containing them, and the use of the hydrogels and compositions thereof in the fields of pharmaceuticals and cosmetics, or as topical or injectable medical devices. |