Step 1: Squeeze a drop of colloidal substance from the needle tube and put it on white paper. If there is oil penetration and halo diffusion, then this thing is definitely not hyaluronic acid, but definitely silicone oil or paraffin oil. This kind of material is prohibited by law.

Step 2: If it is water diffusion, it may be hyaluronic acid, Ogilvy (or IngelFallot), cellulose or collagen. At this time, further identification is needed! The identification method is: drop a drop of hyaluronic acid in the palm of your left hand, and then touch it repeatedly with your right finger. After a few minutes, after most of the water evaporates, you can see it by touching it with your fingers or observing it with your naked eyes. Step 1: Look at the packaging: it is seamless and sealed, and the genuine products must not be repackaged!

Step 2: Look at the logo: the production date, expiration date, manufacturer, anti-counterfeiting logo and serial number are clearly printed on the genuine package. Fake Didi: the fake package is rough and the product information is incomplete. There are sand-like crystal particles in the remaining residue, and nothing else. Then this is cross-linked hyaluronic acid, which can basically be confirmed to be real hyaluronic acid and can be used.

The third identification method: put the extruded product on the flat glass and observe it the next day. As a result, after a night of water volatilization, the residual molded parts on the glass plate were analyzed. If these residues are all molded components, like "Smoothie" particles piled together, it must be hyaluronic acid. If it is a "hard shell-like opaque scab, it is usually Ogilvy; If it is a soft yellowish soft film, it is usually cellulose. If it is not volatile oil, it must be silica gel oil or paraffin oil. If there is nothing left in the end, it is probably non-crosslinked hyaluronic acid!

The fourth identification method: for the identification of whether the solid component is hyaluronic acid, the enzymatic hydrolysis experiment method can be used. The procedure is: put the solid particles into a container filled with hyaluronidase in a 45-degree constant temperature water bath box, and the solid particles can be degraded in about 2 hours. If it does not degrade, it is definitely not hyaluronic acid.

First, see if there is an injection license for medical devices on the outer packaging of hyaluronic acid.

Second, query the security code

Third, see if hyaluronic acid is sealed and packaged before use. Its capacity is generally 0.5ml or 1ml, and it is packaged in aseptic seal, and it will never be packed separately.

Fourth, check the qualifications of hospitals and doctors.

5. Look at the price of hyaluronic acid.

The price of injecting hyaluronic acid in a regular plastic surgery hospital is around 6000 yuan/piece (positive price). If it is much lower than this price, be careful whether hyaluronic acid is genuine or not.

In addition, consumers must sign an informed consent form before receiving hyaluronic acid injection. At the same time, the beauty agency will paste three identical barcodes corresponding to the products on the inner packages of the three lists, one kept by the beauty agency, one kept by the manufacturer and the other kept by the consumers themselves. In this way, once consumers have problems after injecting hyaluronic acid, they can trace the source.