Monophasic and Biphasic Fillers Hyaluronic Acid (HA) is an acid that is a natural skin component and is known for its moisture retention properties. Hyaluronic acid fillers are generally preferred materials for aesthetic applications such as skin plumping, wrinkle reduction and volume increase. Monophasic Hyaluronic Acid Fillers: Monophasic fillers are fillers in which hyaluronic acid molecules form a homogeneous structure and have a uniform distribution. They are generally used for the following purposes: Wrinkle Removal. Skin Plumping. Filling of Scars and Pits. Lip filler. Biphasic Hyaluronic Acid Fillers: Biphasic fillers are fillers that contain hyaluronic acid but consist of two phases of two different densities. These fillings offer a suitable option for more specific and customized applications. Advantages may include: Precision and Customization. More Natural Look. Suitability for Various Aesthetic Applications. Comparison of Monophasic and Biphasic Fillings: Permanence Times: No real difference was observed between the permanence of monophasic and biphasic fillers during the first 90-100 days after the first injection. Volume: Monophasic fillers can produce more voluminous results, while biphasic fillers can be applied more precisely to specific areas. Post-Injection Displacement: Monophasic fillers tend to migrate less. Swelling: Monophasic fillings tend to swell more. Enjeksiyon Kolaylığı: Bifazik dolgular, enjeksiyon için daha az kuvvet gerektirebilir. Pros and Cons: Biphasic Fillers: Long lasting, less swelling in some cases, easier to inject due to lower pressure. However, it also has some negative aspects. Monophasic Fillings: It has advantages such as long-term good results, less displacement and being suitable for sharp edges. In summary, both types of fillers offer different advantages and disadvantages. It should be decided which filler to use depending on the situation being examined and the persons preferences.