What is hyaluronic acid?
Hyaluronic acid is a molecule distributed widely in our body. It is important for water binding, cell growth, and cell adhesion. In skin, hyaluronic acid is particularly localized in the deep layer, the so-called dermis, where the cells are less close together.
In young skin, hyaluronic acid is found near collagen and elastin fibers. During the aging process, there is a physiological decrease in the hyaluronic acid content. This process can be accelerated, e.g. by chronic sun exposure.
Can we apply hyaluronic acid to our skin?
Hyaluronic acid is a constituent of some topical preparations in cosmetics. To reach the dermis, it is necessary to apply it fragmentarily. Due to the fragmentation, the low molecular weight permits an easier penetration into the skin. Once it has passed into the depth where the collagen and elastin fibers are located, it can bind water, improve skin elasticity and attenuate wrinkles.