The water in Sculptra causes initial plumpness to the areas injected but this effect fades over the next few days as the water is absorbed into your body, leaving your facial features unchanged until collagen production begins. Since Sculptra is a biostimulator, meaning it stimulates your own collagen production, it does not provide volume in the same way as hyaluronic acid fillers. The volume builds over time as the Sculptra stimulates your own natural collagen production.