What is hydrophilic polyacrylamide gel?
Hydrophilic polyacrylamide gel (HPG) is a combination of 2.5-5% polyacrylamide, a synthetic polymer, suspended in 95-97.5% apyrogenous water. This is the only injectable implant that remains soft once it has been injected. After injection the water content is absorbed by the body whilst the HPG becomes encapsulated. It remains soft and pliable like the body’s own tissue. HPG products include Aquamid™, Argiform® and DermaLive®. These products are non-toxic, antibacterial, non-sensitising, non-mutagenic, biocompatible and chemically stable. Polyacrylamides have been available for more than 30 years and are in widespread use in biomedical research and industry. They are also used to make soft contact lenses and are incorporated in many cosmetics, including hair products, body lotions and sunscreens.
