Hyaluronic acid is a naturally occurring “water loving” substance in the human body. It attracts and binds 1000 times its weight in moisture making it ideal for the base of a dermal filler.
Until recently Hyaluronic acid was extracted from roosters because of its similar composition to human Hyaluronic acid.
Two Types of Hyaluronic Acid
NASHA (non-animal stabilized Hyaluronic acid): The process is very sophisticated. First, specially bioengineered bacteria produce Hyaluronic acid (HA) nearly identical to human HA. Then the HA is purified and treated with an agent that firms it up into a gel form. The HA is then dispersed into Microspheres of different sizes making it suitable for injecting.
Avian Hyaluronic Acid: Harvested from the comb of the rooster, this type of HA will have amounts of avian protein which could lead to allergic reactions in patients.