The plasticity of hyaluronic acid is a comprehensive result. The ratio of colloid to fluid, the degree of crosslinking and the size of hyaluronic acid particles will all affect the final formability, that is, the molding effect. In practice, it is found that the distribution and crosslinking degree of hyaluronic acid particles have little influence on the moldability, but the ratio of colloid to fluid has the greatest influence.
Medical hyaluronic acid can be roughly divided into two categories: monophasic and biphasic. Single phase is spring liquid, without particles, and dual phase is a mixture of particles and liquid. As far as the current beauty market is concerned, most products are biphasic hyaluronic acid, and the proportion of hyaluronic acid particles and liquids is different among different brands.
Runlan 2, which is more common in the market, has a ratio of particles to fluid of 80: 20; Another famous brand, Fasili, has a ratio of gel to liquid of 98:2. So there is enough difference between the two hyaluronic acids. When the fluid-rich restylane II particles are suspended in the liquid, there will be a considerable gap between the particles, so the particles will flow in the liquid. Therefore, this hyaluronic acid is more suitable for removing tears, crow's feet and so on. If used for shaping and supporting, the effect will be slightly weaker.
From the ratio of the two, we can see that the particles are closely combined, that is, the gap between the particles is very small. If it is used for shaping, such as chin augmentation and nose augmentation, it is not easy to shift when injected into the tissue and has better support.
Although the crosslinking degree of hyaluronic acid has no great influence on the shaping effect, experts here also remind everyone that at the end of the crosslinking degree, the influence of hyaluronic acid on health will be smaller. Although hyaluronic acid is a part of human body, the body will not produce any rejection or immune response to it, but after BDDE is grafted, the structure of hyaluronic acid will change, which may trigger an immune response. Although BDDE can be rapidly metabolized into carbon dioxide and water in human body, if the amount of BDDE is too high, it will exceed a threshold, which may affect biocompatibility or induce immune response. Theoretically, the less BDDE is added, the better.
Therefore, if you want to shape by injecting hyaluronic acid, it is very good to choose Fashili, but if you want to wrinkle and fill, you can choose Ruilan.