A safe scientific method has been developed to biotechnologically obtain hyaluronic acid. During the production process, proteins from yeast are fermented through bacterial processes. The substance is filtered and purified multiple times. The end product is medically usable hyaluronic acid. To produce a hyaluronic acid filler that injects new volume and freshness, this hyaluronic acid is further cross-linked and modified. This creates various types of fillers, from thin-fluid to slightly thicker and more stable, with different granular/particle or mesh-like cohesive appearances. All these different characteristics also influence the distribution of a filler in the tissue, as not all hyaluronic acid fillers are the same.