Hyaluronic acid is an essential component of human connective tissue and serves, among other things, as a “lubricant” for the joints. Thanks to its ability to bind a lot of water, it provides the skin, for example, with sufficient fluid and thus has a positive effect on the skin’s firmness and elasticity. As the body’s own production of hyaluronic acid decreases over time, the firmness of the skin is also reduced, resulting in wrinkles and loss of volume. Wrinkle treatment with hyaluronic acid can fill and smooth out the unpleasant unevenness. In addition, hyaluronic acid can not only increase the volume of the lips, but can also be used to define individual areas in the area of the cheeks and temples, for example.