Because hyaluronic acid is one of the most hydrophilic (water-loving) molecules in nature with numerous benefits for the human body, it can be described as "nature's moisturizer" - the hyaluronic acid molecule can bind up to 1,000 times its weight in water. In addition, many functions of hyaluronic acid depend upon its interaction with cell surface receptors.
These unique properties are at the basis of hyaluronic acid applications in the medical field.
As the principal component of the extracellular matrix (ECM) and thanks to its physico-chemical characteristics, hyaluronic acid's roles is to help maintain tissue hydration, consistency and elasticity, and to serve as a medium through which nutrients and waste are transported to and from the cells. Young skin is smooth and elastic and contains large amounts of hyaluronic acid that helps keep the skin stay young and healthy. With age, the ability of the skin to produce hyaluronic acid decreases, leading to a gradual process of thinning and atrophy.
On the other hand, hyaluronic acid affects cell behaviour and biological response by interacting with specific cell surface receptors. During tissue repair, for instance, HA plays a crucial role in the re-epithelization process.
Recent scientific evidence further elucidating the mechanism of action by which hyaluronic acid exerts its beneficial effects, confirmed the therapeutic efficacy and safety of its use in different fields of application, namely: