For many centuries, ancient wise men and medieval alchemists have vainly been looking for the recipe for youth and beauty. Women tried to struggle with their aging skin with the help of domestic products and magical potions. However, in the 19th century, scientists for the first time faced the issue of aging skin. One of the basic symptoms of aging and withering skin is that it starts to sag. In this case, the skin of cheeks and cheekbones sag and form so-called bulldog cheeks. This process changes the form of the face by turning the corners of the lips down that gives your face a sad, disappointed, or even whining expression. The shape of the oval face changes and all proportions of the face are broken.
The sagging of the skin occurs because there is a loss of elasticity that in turn, happens because of the dehydration of the skin and the infringement of the water balance in large amounts. The coordination of the water balance in the entire organism is carried out by some important fibers, vitamins, and acids. One of the most important acids responsible for the normalization of the skin's water balance is hyaluronic acid. Hyaluronic acid is a specific polysaccharide that is a part of all intracellular liquids and is a connecting fabric in all vertebrates. This acid is contained in the glassy body of an eye and articulate liquid.
Hyaluronic acid provides the consumption of water by skin cells taking into account the hydrophilic processes in the molecule of an acid. Molecules of water make contact with the hydrophilic processes that are resting in a molecule of hyaluronic acid owing the remaining moisture that is strongly kept in a cell. Careful and detailed researchers of hyaluronic acid properties have pushed scientists to try and use this acid in cosmetology. Rather recently producers of cosmetics have started applying hyaluronic acid humidifying creams, masks, and gels to their product lines. Earlier with the purpose of humidifying, skin glycerin was actively applied.
In cosmetic preparations, hyaluronic acid is a very essential ingredient that doesn't reduce its activity and moisture holding ability. In order to simply the penetration of an acid molecule in a cell, hyaluronic acid is chemically connected with colloidal particles of a cream or mask. Penetrating in the skin's pores in the deep layers of epidermis that is combined with a substance of cosmetic preparation, hyaluronic acid renders the effect of moisture retention.
According to some medical data, the humidifying of the skin is due to using cosmetic preparations with hyaluronic acid has raise it 15 to 25 percent and that appears to be quite a good result. However, according to the opinion of some scientists hyaluronic acid not only retains moisture in skin, but also extends water to the deeper layers of skin. By taking water from the deep layers of the skin, the acid dehydrates it even more, and that speeds up the aging and sagging process of the skin.
Since last year, full scale research has been done in Europe, whose purpose turned out to define the true influence of hyaluronic acid on the processes of humidifying and moisture-holding of the skin. The result of this research is expected in 2006.