injectable hydrogel allowing supplementation with glycerol in the long term skin

injectable hydrogel comprising, by weight, a physiologically acceptable fluid vector: 0.01% and 5% deglicerol 0.1% to 5% of a biopolymer of crosslinked hyaluronic acid or a salt thereof with respect to the totalWeight hydrogel, wherein the hyaluronic acid or a salt thereof is crosslinked by the formationof covalent bonds between the chains of said biopolymer with the help of bi- or polyfunctional molecules being sterilized said injectable hydrogel moist heat and having a tan .delta frequency 1 Hzinferior or equal to 1.10.