METHOD OF PREPARING A COMPOSITION BASED ON HYALURONIC ACID

摘要

The invention relates to a method of preparing a composition , the composition comprising a crosslinked first polymer optionally a second polymer , which may be crosslinked or non -crosslinked ,and water, wherein the first and the second polymer are selected from a polysaccharide, comprising at least steps (i) to (iv): (i) crosslinking a mixture comprising the first polymer and water; (ii) subsequent to the crosslinking in step (i) , terminating the crosslinking; (iii) optionally blending the product obtained in step (ii) with the second polymer; (iv) subjecting the product obtained in step (iii) to dialysis.