What is hyaluronic acid?
Hyaluronic acid is, similar to collagen hydrolysate, acomponent of the tissue. Chemically it is a polysaccharide, similar toglucosamine and chondroitin. Hyaluronic acid can store a lot of water, up to 6 liters of water per just one gram of hyaluronic acid. In the vitreous body of the eye, for example, 98% water is present, which is bound by only 2% hyaluronic acid.
Hyaluronic acid makes a liquid “viscous”. This means that the liquid is slightly thickened by hyaluronic acid and causes a lubricating effect. It is a special feature that higher pre ssures lead toincreased viscosity and thus lubricity.
That is why you find hyaluronic acid there in the body in particular where a lot of water is stored and lubricating effects are required. The synovial fluid (synovium) mainly consists of hyaluronic acid. Also, large parts of the connective tissue, e.g. in the deeper layers under the skin, bind moisture with the help of hyaluronic acid.
With age, the body´s ability to produce hyaluronicacid decreases. The skin also contains lower levels of hyaluronic acid as it ages.