Hyaluronic Acid (HA)
The most common types of fillers are the Hyaluronic Acid (HA) group which are reversible. Other common fillers include the Non reversible and temporary fillers that generally last up to 1 year, such as Collagen/ biostimulator injections.
Hyaluronic Acid HA is a Glycosaminoglycan. It plays an integral role in healthy skin and decreases with photoaged (skin damage caused by sun rays) skin. This leads to a weakened structural support, associated with the HA to collagen and elastin, and reduces the skins ability to bind to water. This results in the skin being unable to provide sufficient support for blood vessels, elastin and collagen , and is unable to sustain itself in good health.
HA Fillers are made up of molecules (glycosaminoglycans) which exist naturally within the body where 50% of our bodies HA is found within the skin.
It is quite difficult and almost impossible to state how long fillers last and therefore there is only a ‘soft’ classification which is based on different factors such as patients metabolism, age, area being treated and type of filler being used.