Hyaluronic acid is a lubricating molecule that naturally occurs in the body.
There are large amounts of HA in the skin, connective tissue, and eyes. It binds to water to help retain moisture and to keep tissues lubricated and moist.
It has several important uses: wound treatment (specifically burns), relieve joint pain, soothes acid reflux, dry eye, and so on. It provides that soothing hydrated coating to the joints and digestive tract. It also has some antibacterial properties.
Hyaluronic acid is not like most acid-related serums that are meant to exfoliate, it helps to bind with the skin molecules and pre-existing HA and improve hydration. Not all products are
alike though and
looking at ingredients is the most important factors (as with anything really). Using supplements, within reason, and the serums, are all beneficial because HA is useful to all skin types (dry, acne-prone, oily, combo) and there are minimal interactions. The antioxidant properties of it are a bonus as well.
Hyaluronic Acid Dermal Fillers
Previously, collagen was utilized for most dermal fillers. Collagen, like HA, is a naturally occurring protein in the body. The switch to HA was due to the water-retaining capabilities. The ability to attract water molecules helps with the fillers ability to plump that injected area.
Most companies have made the move into HA fillers. They all recognize the benefits of the switch.