Does hyaluronic acid fill the chin all the time?

Different brands of hyaluronic acid cross-linking degree is different, so after injection of hyaluronic acid to fill the chin, the specific how long can not be exactly the same. After injection of hyaluronic acid can be maintained for a few months or 1~2 years or even longer, in general, after the first injection of hyaluronic acid, due to the rapid metabolism in the body, the maintenance time is relatively short. Normally, it is recommended that after three consecutive injections of hyaluronic acid in the first year, no further injections are required between the second and third years. However, local skin inflammation or infectious skin, lactation, pregnant women are not allowed to inject hyaluronic acid.