Discloses a method of making a soft tissue filler composition comprising the steps of: preparing a crosslinked hyaluronic acid (HA) gel comprising a mixture of a first, low molecular weight HA material and a second, high molecular weight HA material, the second, high molecular weight HA material having a weight average molecular weight of at least twice that of the first, low molecular weight material, the mixture comprising more than about 50% by weight of the first, low molecular weight HA material, wherein the HA materials are hyaluronic acid or one or more salts thereof； adjusting the HA concentration in the crosslinked HA gel to between about 15.0 mg/g and about 20.0 mg/g； preparing a solution comprising an uncrosslinked HA and/or a salt thereof having a weight average molecular weight of between at least about 1.0 MDa and about 4.0 MDa, the solution having a total HA and HA salt concentration of between about 10 mg/g and about 50 mg/g； and combining the gel with the solution.
