1. what is hyaluronic acid:
Hyaluronic acid is one of the ingredients in our body.
Hyaluronic acid, hyaluronic acid, hyaluronic acid, appearance is transparent, gelatinous material viscosity, is a polysaccharide polymer, is a straight chain polymer polysaccharide composed of glucuronic acid -N- acetic acid glucosamine disaccharide molecular units, the average molecular weight between 100 thousand -1000 million Dalton (quality unit), filled in between cells and in the space of human collagen fibers.
Hyaluronic acid is used in clinical department, such as ophthalmology, Department of orthopedics and medical cosmetology department.
But even though they are called hyaluronic acid, their molecular structure is not the same. In Department of orthopedics, hyaluronic acid is only a few tens of yuan and a black heart can get micro hyaluronic acid by using hyaluronic acid. After a few days, it will be cleanly absorbed. The sequelae are not, it's just a little more money. It is human skin hyaluronic acid naturally occurring substances, to promote skin collagen completely harmless, and The new supersedes the old., after injection, it's not ideal it will disappear, of course, the premise is to use is genuine, fake because the body can not absorb the ingredients contain.
2. the relationship between the size of the hyaluronic acid and the duration of the duration of the maintenance:
Hyaluronic acid is generally divided into large, medium and small molecules. Macromolecular hyaluronic acid molecules are filled with stereotypes, mainly used for augmentation rhinoplasty, and so on. The filling part is deep tissue. The maintenance time of the macromolecule hyaluronic acid is relatively good, because the molecule is big and the binding property is big, so the plastic effect is also good.
Macromolecular hyaluronic acid can also be used to lift, will hyaluronic acid to stuffed into the way in leather wrinkles to plump and smooth skinned dents or parts, such as the lips, cheeks, chin, etc.. The effect of using large molecular hyaluronic acid to remove wrinkles can maintain a long time. The disadvantage is that it is not soft enough.
Molecular hyaluronic acid is usually used to lift, the injection site usually lacrimal groove, and lip wrinkles will occur, but also has the role of filling depression, but like macromolecular hyaluronic acid, hyaluronic acid injection and molecular parts of deep tissue, can not fill the surface of the skin. Holding time is shorter than large molecules.
Small molecule hyaluronic acid is a water like hyaluronic acid molecule. It is mainly used in the whole face of the dermis injection, it can replenish the missing water of the dermis, repair the damaged skin, play the role of moisturizing and rejuvenation, and make up for the deficiency of macromolecule and medium molecular hyaluronic acid.