At present, there are five kinds of micro-plastic injection filling materials that are easily confused with hyaluronic acid in the market, namely Ogilvy (or IngelFallot), silicone oil, paraffin oil, cellulose and collagen. There is a simple way to identify Ogilvy-some "hyaluronic acid" containing Ogilvy are mostly sold in beauty salons, and some unqualified plastic surgeons take them to beauty salons for injection. One of them had an injection in a beauty salon, and his temple was swollen after the injection. This is Ogilvy's performance. Now the streets are full of fake hyaluronic acid and collagen, and criminals have won the favor of some beauty seekers with low consumption power with low prices, leading to being deceived. So it needs good identification.